Fix "hiding a lifetime that's elided elsewhere is confusing" warnings on the Nightly compiler

[jakubadamw]

The warnings in question:

warning: hiding a lifetime that's elided elsewhere is confusing
  --> worker/src/durable.rs:80:25
   |
80 |     pub fn id_from_name(&self, name: &str) -> Result<ObjectId> {
   |                         ^^^^^                        ^^^^^^^^ the same lifetime is hidden here
   |                         |
   |                         the lifetime is elided here
   |
   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
   = note: `-D mismatched-lifetime-syntaxes` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(mismatched_lifetime_syntaxes)]`
help: use `'_` for type paths
   |
80 |     pub fn id_from_name(&self, name: &str) -> Result<ObjectId<'_>> {
   |                                                              ++++

warning: hiding a lifetime that's elided elsewhere is confusing
  --> worker/src/durable.rs:98:27
   |
98 |     pub fn id_from_string(&self, hex_id: &str) -> Result<ObjectId> {
   |                           ^^^^^                          ^^^^^^^^ the same lifetime is hidden here
   |                           |
   |                           the lifetime is elided here
   |
   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
help: use `'_` for type paths
   |
98 |     pub fn id_from_string(&self, hex_id: &str) -> Result<ObjectId<'_>> {
   |                                                                  ++++

warning: hiding a lifetime that's elided elsewhere is confusing
   --> worker/src/durable.rs:111:22
    |
111 |     pub fn unique_id(&self) -> Result<ObjectId> {
    |                      ^^^^^            ^^^^^^^^ the same lifetime is hidden here
    |                      |
    |                      the lifetime is elided here
    |
    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
help: use `'_` for type paths
    |
111 |     pub fn unique_id(&self) -> Result<ObjectId<'_>> {
    |                                               ++++

warning: hiding a lifetime that's elided elsewhere is confusing
   --> worker/src/durable.rs:130:40
    |
130 |     pub fn unique_id_with_jurisdiction(&self, jd: &str) -> Result<ObjectId> {
    |                                        ^^^^^                      ^^^^^^^^ the same lifetime is hidden here
    |                                        |
    |                                        the lifetime is elided here
    |
    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
help: use `'_` for type paths
    |
130 |     pub fn unique_id_with_jurisdiction(&self, jd: &str) -> Result<ObjectId<'_>> {
    |                                                                           ++++

warning: hiding a lifetime that's elided elsewhere is confusing
  --> worker/src/r2/mod.rs:45:16
   |
45 |     pub fn get(&self, key: impl Into<String>) -> GetOptionsBuilder {
   |                ^^^^^ the lifetime is elided here ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
   |
   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
help: use `'_` for type paths
   |
45 |     pub fn get(&self, key: impl Into<String>) -> GetOptionsBuilder<'_> {
   |                                                                   ++++

warning: hiding a lifetime that's elided elsewhere is confusing
  --> worker/src/r2/mod.rs:59:16
   |
59 |     pub fn put(&self, key: impl Into<String>, value: impl Into<Data>) -> PutOptionsBuilder {
   |                ^^^^^ the lifetime is elided here                         ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
   |
   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
help: use `'_` for type paths
   |
59 |     pub fn put(&self, key: impl Into<String>, value: impl Into<Data>) -> PutOptionsBuilder<'_> {
   |                                                                                           ++++

warning: hiding a lifetime that's elided elsewhere is confusing
   --> worker/src/r2/mod.rs:101:17
    |
101 |     pub fn list(&self) -> ListOptionsBuilder {
    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
    |                 |
    |                 the lifetime is elided here
    |
    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
help: use `'_` for type paths
    |
101 |     pub fn list(&self) -> ListOptionsBuilder<'_> {
    |                                             ++++

warning: hiding a lifetime that's elided elsewhere is confusing
   --> worker/src/r2/mod.rs:118:9
    |
118 |         &self,
    |         ^^^^^ the lifetime is elided here
119 |         key: impl Into<String>,
120 |     ) -> CreateMultipartUploadOptionsBuilder {
    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
    |
    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
help: use `'_` for type paths
    |
120 |     ) -> CreateMultipartUploadOptionsBuilder<'_> {
    |                                             ++++

warning: hiding a lifetime that's elided elsewhere is confusing
   --> worker/src/r2/mod.rs:273:17
    |
273 |     pub fn body(&self) -> Option<ObjectBody> {
    |                 ^^^^^            ^^^^^^^^^^ the same lifetime is hidden here
    |                 |
    |                 the lifetime is elided here
    |
    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
help: use `'_` for type paths
    |
273 |     pub fn body(&self) -> Option<ObjectBody<'_>> {
    |                                            ++++

warning: hiding a lifetime that's elided elsewhere is confusing
   --> worker/src/websocket.rs:211:19
    |
211 |     pub fn events(&self) -> Result<EventStream> {
    |                   ^^^^^            ^^^^^^^^^^^ the same lifetime is hidden here
    |                   |
    |                   the lifetime is elided here
    |
    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
help: use `'_` for type paths
    |
211 |     pub fn events(&self) -> Result<EventStream<'_>> {
    |                                               ++++