Bump the docker group with 1 update (#2588)

Bumps the docker group with 1 update: [docker/metadata-action](https://github.com/docker/metadata-action).


Updates `docker/metadata-action` from 5.4.0 to 5.5.0
- [Release notes](https://github.com/docker/metadata-action/releases)
- [Commits](docker/metadata-action@9dc751f...dbef880)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Pavan Navarathna <6504783+pavannd1@users.noreply.github.com>
Co-authored-by: Daniil Fedotov <daniil.fedotov@kasten.io>

.github/workflows/atlas-image-build.yaml

@@ -39,7 +39,7 @@ jobs:
       uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # v3.0.0
     - name: Image metadata
       id: meta
-      uses: docker/metadata-action@9dc751fe249ad99385a2583ee0d084c400eee04e # v5.4.0
+      uses: docker/metadata-action@dbef88086f6cef02e264edb7dbf63250c17cef6c # v5.5.0
       with:
         images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
         tags: |

.github/workflows/kanister-image-build.yaml

@@ -44,7 +44,7 @@ jobs:
       uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # v3.0.0
     - name: Image metadata
       id: meta
-      uses: docker/metadata-action@9dc751fe249ad99385a2583ee0d084c400eee04e # v5.4.0
+      uses: docker/metadata-action@dbef88086f6cef02e264edb7dbf63250c17cef6c # v5.5.0
       with:
         images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
         tags: |