Bump docker/metadata-action from 4 to 5

Bumps [docker/metadata-action](https://github.com/docker/metadata-action) from 4 to 5.
- [Release notes](https://github.com/docker/metadata-action/releases)
- [Upgrade guide](https://github.com/docker/metadata-action/blob/master/UPGRADE.md)
- [Commits](docker/metadata-action@v4...v5)

---
updated-dependencies:
- dependency-name: docker/metadata-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/rabbitmq_peer_discovery_aws.yaml

@@ -21,7 +21,7 @@ jobs:
     steps:
     - name: CHECKOUT REPOSITORY
       uses: actions/checkout@v4
-    - uses: docker/metadata-action@v4
+    - uses: docker/metadata-action@v5
       id: metadata
       with:
         images: pivotalrabbitmq/rabbitmq