release(deps[gp-sphinx]) bump 0.0.1a16.dev4 → 0.0.1a16

why: gp-sphinx 0.0.1a16 (final) is on PyPI. Promote off the
pre-release pin and drop the [tool.uv].prerelease workaround that
was only needed to resolve *.devN versions.

what:
- bump every gp-sphinx workspace pin in pyproject.toml + uv.lock
- drop the [tool.uv] block carrying prerelease = "allow"; the
  [tool.uv.exclude-newer-package] section it sat above is unchanged

Author: tony

pyproject.toml

@@ -64,9 +64,9 @@ Changes = "https://github.com/vcs-python/libvcs/blob/master/CHANGES"
 [dependency-groups]
 dev = [
   # Docs
-  "gp-sphinx==0.0.1a16.dev4",
-  "sphinx-autodoc-api-style==0.0.1a16.dev4",
-  "sphinx-autodoc-pytest-fixtures==0.0.1a16.dev4",
+  "gp-sphinx==0.0.1a16",
+  "sphinx-autodoc-api-style==0.0.1a16",
+  "sphinx-autodoc-pytest-fixtures==0.0.1a16",
   "gp-libs",
   "sphinx-autobuild",
   # Testing
@@ -85,9 +85,9 @@ dev = [
 ]
 
 docs = [
-  "gp-sphinx==0.0.1a16.dev4",
-  "sphinx-autodoc-api-style==0.0.1a16.dev4",
-  "sphinx-autodoc-pytest-fixtures==0.0.1a16.dev4",
+  "gp-sphinx==0.0.1a16",
+  "sphinx-autodoc-api-style==0.0.1a16",
+  "sphinx-autodoc-pytest-fixtures==0.0.1a16",
   "gp-libs",
   "sphinx-autobuild",
 ]
@@ -115,13 +115,6 @@ libvcs = "libvcs.pytest_plugin"
 requires = ["hatchling"]
 build-backend = "hatchling.build"
 
-[tool.uv]
-# `[DO NOT MERGE]`: gp-sphinx workspace ships on the 0.0.1a16.devN
-# pre-release track until the sphinx-vite-builder integration is
-# proven end-to-end. uv otherwise refuses to resolve `*.dev4`
-# markers without this allow.
-prerelease = "allow"
-
 [tool.uv.exclude-newer-package]
 # git-pull packages release in lockstep with their workspaces, so a
 # fresh release blocking on the 3-day cooldown blocks every