chore: Use gapic-libraries-bom version for tags

Author: suztomo

.github/workflows/hermetic_library_generation.yaml

@@ -37,7 +37,7 @@ jobs:
       with:
         fetch-depth: 0
         token: ${{ secrets.CLOUD_JAVA_BOT_TOKEN }}
-    - uses: googleapis/google-cloud-java/sdk-platform-java/.github/scripts@google-cloud-shared-dependencies/v3.61.0
+    - uses: googleapis/google-cloud-java/sdk-platform-java/.github/scripts@v1.85.0
       if: env.SHOULD_RUN == 'true'
       with:
         base_ref: ${{ github.base_ref }}

.github/workflows/unmanaged_dependency_check.yaml

@@ -17,6 +17,6 @@ jobs:
           # repository
           .kokoro/build.sh
       - name: Unmanaged dependency check
-        uses: googleapis/google-cloud-java/sdk-platform-java/java-shared-dependencies/unmanaged-dependency-check@google-cloud-shared-dependencies/v3.61.0
+        uses: googleapis/google-cloud-java/sdk-platform-java/java-shared-dependencies/unmanaged-dependency-check@v1.85.0
         with:
           bom-path: google-cloud-pubsublite-bom/pom.xml