Bump mr-smithers-excellent/docker-build-push from 6 to 7

Bumps [mr-smithers-excellent/docker-build-push](https://github.com/mr-smithers-excellent/docker-build-push) from 6 to 7.
- [Release notes](https://github.com/mr-smithers-excellent/docker-build-push/releases)
- [Commits](mr-smithers-excellent/docker-build-push@v6...v7)

---
updated-dependencies:
- dependency-name: mr-smithers-excellent/docker-build-push
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci-build-manual.yml

@@ -51,7 +51,7 @@ jobs:
       - uses: actions/checkout@v4
       - name: Build and push
         id: docker_build
-        uses: mr-smithers-excellent/docker-build-push@v6
+        uses: mr-smithers-excellent/docker-build-push@v7
         with:
           dockerfile: Dockerfile.software
           username: ${{ secrets.DOCKERHUB_USERNAME }}

.github/workflows/ci-build.yml

@@ -58,7 +58,7 @@ jobs:
       - uses: actions/checkout@v4
       - name: Build and push
         id: docker_build
-        uses: mr-smithers-excellent/docker-build-push@v6
+        uses: mr-smithers-excellent/docker-build-push@v7
         with:
           dockerfile: Dockerfile.software
           username: ${{ secrets.DOCKERHUB_USERNAME }}