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](https://github.com/docker/metadata-action/compare/v4...v5)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/dockerimage.yml

@@ -81,7 +81,7 @@ jobs:
 
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v4
+        uses: docker/metadata-action@v5
         with:
           images: |
             b4tman/squid
@@ -95,7 +95,7 @@ jobs:
 
       - name: Docker meta (ssl-bump)
         id: meta_ssl_bump
-        uses: docker/metadata-action@v4
+        uses: docker/metadata-action@v5
         with:
           images: |
             b4tman/squid
@@ -110,7 +110,7 @@ jobs:
 
       - name: Docker meta (ssl-bump ghcr)
         id: meta_ssl_bump_ghcr
-        uses: docker/metadata-action@v4
+        uses: docker/metadata-action@v5
         with:
           images: |
             ghcr.io/b4tman/squid-ssl-bump