Fix maghemite auto-updates (#5949)

Running the maghemite update script creates changes in the
packge-manifest.toml file, but that file is not being tracked in the
auto update script.

* Commit package manifest during updates

.github/workflows/update-maghemite.yml

@@ -55,7 +55,7 @@ jobs:
         run: |
           . ./tools/reflector/helpers.sh
 
-          PATHS=("tools/maghemite_ddm_openapi_version" "tools/maghemite_mg_openapi_version" "tools/maghemite_mgd_checksums")
+          PATHS=("tools/maghemite_ddm_openapi_version" "tools/maghemite_mg_openapi_version" "tools/maghemite_mgd_checksums" "package-manifest.toml")
           CHANGES=()
           commit $TARGET_BRANCH $INT_BRANCH ${{ inputs.reflector_user_id }} PATHS CHANGES