Also push the old wheel name to GCP (#467)

## Summary
Previously in this change
9901878
I had us push the old wheel name for etsy to AWS but forgot to also do
the same for GCP

## Checklist
- [ ] Added Unit Tests
- [ ] Covered by existing CI
- [ ] Integration tested
- [ ] Documentation update



<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **New Features**
- Expanded the distribution process to include an additional legacy
package artifact upload. This update integrates enhanced metadata
tracking (e.g., timestamps and commit references) to ensure improved
traceability and auditability while maintaining consistency with
existing deployments. These improvements contribute to a smoother and
more reliable update experience for end-users.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Author: david-zlai

scripts/distribution/build_and_upload_artifacts.sh

@@ -188,6 +188,7 @@ function upload_to_gcp() {
                 gcloud storage cp "$CLOUD_GCP_JAR" "$ELEMENT_JAR_PATH" --custom-metadata="zipline_user=$USER,updated_date=$(date),commit=$(git rev-parse HEAD),branch=$(git rev-parse --abbrev-ref HEAD)"
                 gcloud storage cp "$SERVICE_JAR" "$ELEMENT_JAR_PATH" --custom-metadata="zipline_user=$USER,updated_date=$(date),commit=$(git rev-parse HEAD),branch=$(git rev-parse --abbrev-ref HEAD)"
                 gcloud storage cp "$EXPECTED_ZIPLINE_WHEEL" "$ELEMENT_JAR_PATH" --custom-metadata="zipline_user=$USER,updated_date=$(date),commit=$(git rev-parse HEAD),branch=$(git rev-parse --abbrev-ref HEAD)"
+                gcloud storage cp "$OLD_ZIPLINE_WHEEL_NAME" "$ELEMENT_JAR_PATH" --custom-metadata="zipline_user=$USER,updated_date=$(date),commit=$(git rev-parse HEAD),branch=$(git rev-parse --abbrev-ref HEAD)"
                 gcloud storage cp "$FLINK_JAR" "$ELEMENT_JAR_PATH" --custom-metadata="zipline_user=$USER,updated_date=$(date),commit=$(git rev-parse HEAD),branch=$(git rev-parse --abbrev-ref HEAD)"
               done
               echo "Succeeded"