Bump the gha-dependencies group across 1 directory with 2 updates

Bumps the gha-dependencies group with 2 updates in the / directory: [docker/login-action](https://github.com/docker/login-action) and [docker/build-push-action](https://github.com/docker/build-push-action).


Updates `docker/login-action` from 2 to 3
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](docker/login-action@v2...v3)

Updates `docker/build-push-action` from 5 to 6
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v5...v6)

---
updated-dependencies:
- dependency-name: docker/login-action
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: gha-dependencies
- dependency-name: docker/build-push-action
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: gha-dependencies
...

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

.github/workflows/docker-build-test-upload.yml

@@ -31,7 +31,7 @@ jobs:
               uses: actions/checkout@v4
 
             - name: Login to Container Registry 🔑
-              uses: docker/login-action@v2
+              uses: docker/login-action@v3
               if: ${{ !github.event.pull_request.head.repo.fork }}
               with:
                   registry: ghcr.io
@@ -54,7 +54,7 @@ jobs:
 
             - name: Build and push image
               id: build-upload
-              uses: docker/build-push-action@v5
+              uses: docker/build-push-action@v6
               with:
                   tags: ${{ steps.meta.outputs.tags }}
                   load: ${{ github.event.pull_request.head.repo.fork }}