deps: update googleapis/sdk-platform-java action to v2.56.2 (#3055)

Author: renovate-bot

.github/workflows/hermetic_library_generation.yaml

@@ -43,7 +43,7 @@ jobs:
       with:
         fetch-depth: 0
         token: ${{ secrets.CLOUD_JAVA_BOT_TOKEN }}
-    - uses: googleapis/sdk-platform-java/.github/[email protected].1
+    - uses: googleapis/sdk-platform-java/.github/[email protected].2
       if: env.SHOULD_RUN == 'true'
       with:
         base_ref: ${{ github.base_ref }}