chore: sync librarian.yaml with generation_config.yaml (#13319)

Sync librarian.yaml with generation_config.yaml for latest changes,
including googleapis commit change, new library addition and libraries
bom version.
Update librarian version, which brings in changes from
googleapis/librarian#6252 and
googleapis/librarian#6125.

This change is made be following steps:

- `migrate .` syn generation_config.yaml changes
- set librarian pseudo version
```
PSEUDO=$(GOPROXY=direct go list -m -f '{{.Version}}' [github.com/googleapis/librarian@main](http://github.com/googleapis/librarian@main))
```


For googleapis/librarian#6173

Author: zhumin8