py(deps[uv]) Whitelist git-pull packages from exclude-newer cooldown

why: With gp-sphinx 0.0.1a10 just published (and any of its
workspace siblings minted at the same time), the rolling
exclude-newer = now − P3D window in the lockfile filters every
release younger than 3 days. Until the window naturally clears,
contributor uv sync --all-extras --dev --upgrade would fail with:

    × No solution found when resolving dependencies:
      ╰─▶ Because there is no version of gp-sphinx==0.0.1a10 ...
      hint: Consider using `exclude-newer-package` to override the
      cutoff for this package.

The cooldown exists for supply-chain hygiene against unfamiliar
upstreams. git-pull packages aren't an unfamiliar upstream — gp ==
git-pull, and so are we — so the cooldown adds friction without
adding safety. Every workspace release would otherwise block every
contributor's sync for three days.

vcspull solved the identical pattern for libvcs in
~/work/python/vcspull/pyproject.toml; this commit mirrors that
approach, extended to cover the full git-pull dep surface
(gp-libs as a standalone utility, gp-sphinx plus its workspace
siblings as the docs stack).

what:
- pyproject.toml: add a [tool.uv.exclude-newer-package] block
  exempting every git-pull-authored package from the cooldown.
  gp-libs leads as the standalone utility; gp-sphinx and its
  workspace packages (sphinx-autodoc-*, sphinx-gp-*, sphinx-ux-*,
  sphinx-fonts) follow in alphabetical order. Comment cites the
  vcspull/libvcs precedent so future maintainers know why the
  override exists.
- uv.lock: regenerated. uv writes a matching
  [options.exclude-newer-package] block; the 0.0.1a10 line
  resolves cleanly from PyPI.

Author: tony

pyproject.toml

@@ -113,6 +113,29 @@ lint = [
 requires = ["hatchling"]
 build-backend = "hatchling.build"
 
+[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
+# contributor's `uv sync` until it clears. `false` exempts each
+# from any `exclude-newer` constraint (global or per-user) without
+# committing a date that would age into the lockfile. Mirrors the
+# pattern at vcspull/pyproject.toml for libvcs.
+gp-libs = false
+gp-sphinx = false
+sphinx-autodoc-api-style = false
+sphinx-autodoc-argparse = false
+sphinx-autodoc-docutils = false
+sphinx-autodoc-fastmcp = false
+sphinx-autodoc-pytest-fixtures = false
+sphinx-autodoc-sphinx = false
+sphinx-autodoc-typehints-gp = false
+sphinx-fonts = false
+sphinx-gp-opengraph = false
+sphinx-gp-sitemap = false
+sphinx-gp-theme = false
+sphinx-ux-autodoc-layout = false
+sphinx-ux-badges = false
+
 [tool.coverage.run]
 branch = true
 source = [