Bazel Docs: Add missing generated files to 9.0 release docs.

https://github.com/bazelbuild/bazel/commit/6e1e226ec7d194d42f518f6add96f6a770e60c45 built the initial 9.0 docs, but missed all generated docs under rules/lib/repo because the html2mdx tool ignored all .md files.

Since then we've upgraded html2mdx to docs2mdx, so I could cherry-pick those additional commits to recreated the 9.0 docs:

<details>

<summary>Commands</summary>

```
git checkout release-9.0.0
# remove file that should be generated, but was checked in by mistake:
rm docs/reference/command-line-reference.mdx
# revert 9.1.0 change:
git revert 87aad180893bcd21cf049e64d3101cd3c7ef1981
git cherry-pick bc436e3e6c0240f604c2713ee23037b246813412 \
  a4e5d848c35f63e827fc257e5ffb8722e06412ad \
  8ca49ef4554aa1f9d480dfcf18ebde63bd6f9995 \
  4c6b39b378cdc065515e2d9b63417b33772bd4c5 \
  8f80aeada1117968f5b76445811758c29367f1df \
  1c114e332fd5de02bad84ebab6796c627c2a8c1f \
  e602c70edfbf1f4e779393851e5318989234b654

bazel build \
  --config=docs \
  //scripts/docs:gen_mdx_release_docs
```

</details>

PiperOrigin-RevId: 895876591