chore(deps): bump alabaster from 0.7.16 to 1.0.0

Bumps [alabaster](https://github.com/sphinx-doc/alabaster) from 0.7.16 to 1.0.0.
- [Release notes](https://github.com/sphinx-doc/alabaster/releases)
- [Changelog](https://github.com/sphinx-doc/alabaster/blob/master/docs/changelog.rst)
- [Commits](sphinx-doc/alabaster@0.7.16...1.0.0)

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

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

docs/requirements.txt

@@ -4,9 +4,9 @@
 #
 #    'make requirements'
 #
-alabaster==0.7.16 \
-    --hash=sha256:75a8b99c28a5dad50dd7f8ccdd447a121ddb3892da9e53d1ca5cca3106d58d65 \
-    --hash=sha256:b46733c07dce03ae4e150330b975c75737fa60f0a7c591b6c8bf4928a28e2c92
+alabaster==1.0.0 \
+    --hash=sha256:c00dca57bca26fa62a6d7d0a9fcce65f3e026e9bfe33e9c538fd3fbb2144fd9e \
+    --hash=sha256:fc6786402dc3fcb2de3cabd5fe455a2db534b371124f1f21de8731783dec828b
     # via sphinx
 babel==2.16.0 \
     --hash=sha256:368b5b98b37c06b7daf6696391c3240c938b37767d4584413e8438c5c435fa8b \