Remove types_debug_info_entry() conditional in debugger e2e tests after bumping minimal Scarb to 2.20.0

[MKowalski8]

After #4480, the debugger e2e tests conditionally include add-types-debug-info = true in Scarb.toml only when Scarb >= 2.20.0, since this option causes compile errors on earlier versions.

Once the minimal supported Scarb version is bumped to 2.20.0, the types_debug_info_entry() helper in crates/forge/tests/e2e/debugger.rs should be removed and add-types-debug-info = true should be added unconditionally to all debugger test configs.

TODO marked in tests