build(deps): bump astroid from 3.3.11 to 4.0.0 in /docs

Bumps [astroid](https://github.com/pylint-dev/astroid) from 3.3.11 to 4.0.0.
- [Release notes](https://github.com/pylint-dev/astroid/releases)
- [Changelog](https://github.com/pylint-dev/astroid/blob/main/ChangeLog)
- [Commits](pylint-dev/astroid@v3.3.11...v4.0.0)

---
updated-dependencies:
- dependency-name: astroid
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

docs/requirements.txt

@@ -14,9 +14,9 @@ alabaster==1.0.0 ; python_full_version >= '3.10' \
     --hash=sha256:c00dca57bca26fa62a6d7d0a9fcce65f3e026e9bfe33e9c538fd3fbb2144fd9e \
     --hash=sha256:fc6786402dc3fcb2de3cabd5fe455a2db534b371124f1f21de8731783dec828b
     # via sphinx
-astroid==3.3.11 \
-    --hash=sha256:1e5a5011af2920c7c67a53f65d536d65bfa7116feeaf2354d8b94f29573bb0ce \
-    --hash=sha256:54c760ae8322ece1abd213057c4b5bba7c49818853fc901ef09719a60dbf9dec
+astroid==4.0.0 \
+    --hash=sha256:235980d60cdf94f63d1084d6e7fb4c1718a7f461149fc5800834e4625632f5ac \
+    --hash=sha256:b1bf640a2dbd198e26516fce7757f6484a28fb6e77d8d19eb965bf84d4c0997b
     # via sphinx-autodoc2
 babel==2.17.0 \
     --hash=sha256:0c54cffb19f690cdcc52a3b50bcbf71e07a808d1c80d549f2459b9d2cf0afb9d \