py(deps[dev]): Bump gp-sphinx packages to 0.0.1a2

why: The gp-sphinx workspace moved to v0.0.1a2; downstream branches need
matching pins. sphinx-autodoc-pytest-fixtures is a new explicit dep
required by the doc-pytest-plugin directive adopted in the docs commit.
what:
- bump gp-sphinx from 0.0.1a1 to 0.0.1a2 in dev and docs groups
- add sphinx-autodoc-pytest-fixtures==0.0.1a2 to dev and docs groups
- uv.lock will be refreshed once 0.0.1a2 is published to PyPI

Author: tony

pyproject.toml

@@ -64,7 +64,8 @@ Changes = "https://github.com/vcs-python/libvcs/blob/master/CHANGES"
 [dependency-groups]
 dev = [
   # Docs
-  "gp-sphinx==0.0.1a1",
+  "gp-sphinx==0.0.1a2",
+  "sphinx-autodoc-pytest-fixtures==0.0.1a2",
   "gp-libs",
   "sphinx-autobuild",
   # Testing
@@ -83,7 +84,8 @@ dev = [
 ]
 
 docs = [
-  "gp-sphinx==0.0.1a1",
+  "gp-sphinx==0.0.1a2",
+  "sphinx-autodoc-pytest-fixtures==0.0.1a2",
   "gp-libs",
   "sphinx-autobuild",
 ]