Bump docker/build-push-action from 5 to 6 (#328)

Bumps [docker/build-push-action](https://github.com/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/build-push-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ansible-aws-image-build.yml

@@ -38,7 +38,7 @@ jobs:
 
       - name: Build and push to ghcr
         id: build_publish
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: ./docker/delius-ansible-aws
           file: ./docker/delius-ansible-aws/Dockerfile

.github/workflows/ldap-automation-image-build.yml

@@ -54,7 +54,7 @@ jobs:
 
       - name: Build and push to ghcr
         id: build_publish
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: ./docker/ldap-automation
           file: ./docker/ldap-automation/Dockerfile