chore(docs): bump gp-sphinx pins 0.0.1a7 -> 0.0.1a8

why: Adopt the v0.0.1a8 release of the shared docs platform —
  argparse domain, CSS namespace unification under gp-sphinx-*,
  sphinx>=8.1 floor, typed env.domains.* accessors, autodoc
  layout and badges package renames, py.typed marker for
  typehints-gp.
what:
- Bump gp-sphinx and sphinx-autodoc-api-style pins from
  0.0.1a7 to 0.0.1a8 across every dependency group
- Replace sphinx-argparse-neo==0.0.1a7 with
  sphinx-autodoc-argparse==0.0.1a8, and update the extension
  name in docs/conf.py from sphinx_argparse_neo.exemplar to
  sphinx_autodoc_argparse.exemplar
- Refresh uv.lock against the published workspace

See also: https://pypi.org/project/gp-sphinx/0.0.1a8/

Author: tony

docs/conf.py

@@ -37,7 +37,7 @@
     dark_logo="img/vcspull-dark.svg",
     extra_extensions=[
         "sphinx_autodoc_api_style",
-        "sphinx_argparse_neo.exemplar",
+        "sphinx_autodoc_argparse.exemplar",
     ],
     intersphinx_mapping={
         "py": ("https://docs.python.org/", None),

pyproject.toml

@@ -70,9 +70,9 @@ vcspull = "vcspull:cli.cli"
 [dependency-groups]
 dev = [
   # Docs
-  "gp-sphinx==0.0.1a7",
-  "sphinx-argparse-neo==0.0.1a7",
-  "sphinx-autodoc-api-style==0.0.1a7",
+  "gp-sphinx==0.0.1a8",
+  "sphinx-autodoc-argparse==0.0.1a8",
+  "sphinx-autodoc-api-style==0.0.1a8",
   "gp-libs",
   "sphinx-autobuild",
   # Testing
@@ -99,9 +99,9 @@ dev = [
 ]
 
 docs = [
-  "gp-sphinx==0.0.1a7",
-  "sphinx-argparse-neo==0.0.1a7",
-  "sphinx-autodoc-api-style==0.0.1a7",
+  "gp-sphinx==0.0.1a8",
+  "sphinx-autodoc-argparse==0.0.1a8",
+  "sphinx-autodoc-api-style==0.0.1a8",
   "gp-libs",
   "sphinx-autobuild",
 ]