Include .git_keep files in role template skeleton (#24381)

setup.py will not install package_data this is just an empty
directory, even if the globs in package_data match it.

So the role skeleton that was being installed to galaxy/data/*/
was excluding the files/ and templates/ directories since they were
empty.

Since the skeleton dir doesnt include those dirs
'ansible-galaxy init' would not set them up.

So this adds a .* glob to those directories so the .git_keep
will be included as well, so that setup.py will create the otherwise
empty directoty. ansible-galaxy init already knows to ignore those
files, so no other changes are needed.

(Including the .git_keep files is a little odd, but the alternative
would be creating our own placeholder files. Since ansible-galaxy
already understands .git_keep files we just reuse that)

Fixes #23597

setup.py

@@ -57,6 +57,7 @@ setup(
             'modules/windows/*.ps1',
             'modules/windows/*.ps1',
             'galaxy/data/*/*.*',
+            'galaxy/data/*/*/.*',
             'galaxy/data/*/*/*.*',
             'galaxy/data/*/tests/inventory'
         ],