Bump docker/build-push-action from 5 to 6

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
...

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

.github/workflows/docker-publish-dockermod-dcsserverbot.yml

@@ -43,7 +43,7 @@ jobs:
         run: echo "DATE=$(date +'%Y-%m-%d')" >> $GITHUB_ENV
 
       - name: Build image and push to Docker Hub and GitHub Container Registry
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: ./docker
           file: ./docker/Dockerfile.DockerMod.dcsserverbot

.github/workflows/docker-publish-dockermod-retribution.yml

@@ -43,7 +43,7 @@ jobs:
         run: echo "DATE=$(date +'%Y-%m-%d')" >> $GITHUB_ENV
 
       - name: Build image and push to Docker Hub and GitHub Container Registry
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: ./docker
           file: ./docker/Dockerfile.DockerMod.dcs-retribution

.github/workflows/docker-publish.yml

@@ -46,7 +46,7 @@ jobs:
         run: echo "DATE=$(date +'%Y-%m-%d')" >> $GITHUB_ENV
 
       - name: Build image and push to Docker Hub and GitHub Container Registry
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: ./docker
           file: ./docker/Dockerfile

.github/workflows/docker-test-dockermod-dcsserverbot.yml

@@ -27,7 +27,7 @@ jobs:
         uses: docker/setup-buildx-action@v3
 
       - name: Build image only
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: ./docker
           file: ./docker/Dockerfile.DockerMod.dcsserverbot

.github/workflows/docker-test-dockermod-retribution.yml

@@ -27,7 +27,7 @@ jobs:
         uses: docker/setup-buildx-action@v3
 
       - name: Build image only
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: ./docker
           file: ./docker/Dockerfile.DockerMod.dcs-retribution

.github/workflows/docker-test.yml

@@ -30,7 +30,7 @@ jobs:
         uses: docker/setup-buildx-action@v3
 
       - name: Build image only
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: ./docker
           file: ./docker/Dockerfile