packages(refactor[classifiers]): normalize Development Status to Alpha

why: sphinx-autodoc-argparse, sphinx-fonts, and sphinx-gp-theme
carried `Development Status :: 4 - Beta` while the remaining nine
workspace packages were at `3 - Alpha`. The whole workspace
publishes lockstep at 0.0.1a7 — a pre-release alpha version — so
the three Beta outliers misrepresent their actual readiness to
downstream consumers browsing PyPI.  Since we release-gate all
twelve packages together, their classifier story should line up.
what:
- Change `Development Status :: 4 - Beta` → `3 - Alpha` in the
  three outlier pyproject.toml files.
- No functional or metadata-otherwise change; twine check still
  passes and the lockstep version gate is untouched.

Author: tony

packages/sphinx-autodoc-argparse/pyproject.toml

@@ -8,7 +8,7 @@ authors = [
 ]
 license = { text = "MIT" }
 classifiers = [
-  "Development Status :: 4 - Beta",
+  "Development Status :: 3 - Alpha",
   "License :: OSI Approved :: MIT License",
   "Framework :: Sphinx",
   "Framework :: Sphinx :: Extension",

packages/sphinx-fonts/pyproject.toml

@@ -8,7 +8,7 @@ authors = [
 ]
 license = { text = "MIT" }
 classifiers = [
-  "Development Status :: 4 - Beta",
+  "Development Status :: 3 - Alpha",
   "License :: OSI Approved :: MIT License",
   "Framework :: Sphinx",
   "Framework :: Sphinx :: Extension",

packages/sphinx-gp-theme/pyproject.toml

@@ -8,7 +8,7 @@ authors = [
 ]
 license = { text = "MIT" }
 classifiers = [
-  "Development Status :: 4 - Beta",
+  "Development Status :: 3 - Alpha",
   "License :: OSI Approved :: MIT License",
   "Framework :: Sphinx",
   "Framework :: Sphinx :: Theme",