resolve dependencies from PyPI instead of pinned github forks

Drop the [tool.uv.sources] pins of deltas, mwxml, and yamlconf to forks
under a personal github account:

- The deltas fork was byte-identical to upstream.
- The mwxml fork carried one patch to mwxml.map(), which wikiq does not
  call, and was missing eleven upstream commits of fixes. Require
  mwxml >= 0.3.8 for those fixes; note that 0.3.7 changed namespace
  handling to trust the dump's embedded <ns> tag rather than overriding
  it based on the title prefix.
- The yamlconf fork loosened an old pyyaml pin in requirements.txt.
  yamlconf is not imported by wikiq and is only needed transitively by
  deltas, so drop the direct dependency; the PyPI release installs fine,
  though its pyyaml pin is old (worth fixing upstream).

With pywikidiff2 already declared as a PEP 508 direct https reference,
no uv-specific configuration remains and the package installs with pip.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

pyproject.toml

@@ -12,11 +12,10 @@ dependencies = [
     "mwpersistence>=0.2.4",
     "mwreverts>=0.1.5",
     "mwtypes>=0.4.0",
-    "mwxml>=0.3.6",
+    "mwxml>=0.3.8",
     "pyarrow>=20.0.0",
     "pywikidiff2 @ git+https://gitea.communitydata.science/groceryheist/pywikidiff2.git",
     "sortedcontainers>=2.4.0",
-    "yamlconf>=0.2.6",
 ]
 
 [project.scripts]
@@ -32,12 +31,6 @@ packages = ["src/wikiq"]
 [tool.hatch.metadata]
 allow-direct-references = true
 
-[tool.uv.sources]
-
-yamlconf = { git = "https://github.com/groceryheist/yamlconf" }
-mwxml = { git = "https://github.com/groceryheist/python-mwxml" }
-deltas = { git = "https://github.com/groceryheist/deltas" }
-
 [dependency-groups]
 dev = [
     "ipython>=8.18.1",