fix: Propagate common kwargs to sphinx_run (bazel-contrib#2442)

This ensures tags like `manual` (and other attributes) are copied into
the `{name}.run`
target and properly respected.


Fixes bazel-contrib#2441

Author: tpudlik

sphinxdocs/private/sphinx.bzl

@@ -190,6 +190,7 @@ def sphinx_docs(
     sphinx_run(
         name = name + ".run",
         docs = name,
+        **common_kwargs
     )
 
     build_test(