Bump the minor-actions-dependencies group with 3 updates

Bumps the minor-actions-dependencies group with 3 updates: [actions/publish-immutable-action](https://github.com/actions/publish-immutable-action), [docker/login-action](https://github.com/docker/login-action) and [docker/build-push-action](https://github.com/docker/build-push-action).


Updates `actions/publish-immutable-action` from 0.0.3 to 0.0.4
- [Release notes](https://github.com/actions/publish-immutable-action/releases)
- [Commits](actions/publish-immutable-action@0.0.3...v0.0.4)

Updates `docker/login-action` from 3.3.0 to 3.6.0
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](docker/login-action@v3.3.0...v3.6.0)

Updates `docker/build-push-action` from 6.5.0 to 6.18.0
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v6.5.0...v6.18.0)

---
updated-dependencies:
- dependency-name: actions/publish-immutable-action
  dependency-version: 0.0.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: minor-actions-dependencies
- dependency-name: docker/login-action
  dependency-version: 3.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: minor-actions-dependencies
- dependency-name: docker/build-push-action
  dependency-version: 6.18.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: minor-actions-dependencies
...

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

Author: dependabot[bot]

.github/workflows/publish-immutable-actions.yml

@@ -17,4 +17,4 @@ jobs:
         uses: actions/checkout@v6
       - name: Publish
         id: publish
-        uses: actions/publish-immutable-action@0.0.3
+        uses: actions/publish-immutable-action@v0.0.4

.github/workflows/update-test-ubuntu-git.yml

@@ -31,7 +31,7 @@ jobs:
       # Use `docker/login-action` to log in to GHCR.io. 
       # Once published, the packages are scoped to the account defined here.
       - name: Log in to the ghcr.io container registry
-        uses: docker/login-action@v3.3.0
+        uses: docker/login-action@v3.6.0
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
@@ -48,7 +48,7 @@ jobs:
 
       # Use `docker/build-push-action` to build (and optionally publish) the image. 
       - name: Build Docker Image (with optional Push)
-        uses: docker/build-push-action@v6.5.0
+        uses: docker/build-push-action@v6.18.0
         with:
           context: .
           file: images/test-ubuntu-git.Dockerfile