chore(deps): update docker/build-push-action action to v6

Author: renovate[bot]

.github/workflows/build-and-release-application.yaml

@@ -87,7 +87,7 @@ jobs:
 
       - name: Build (and push if on master)
         id: docker_build
-        uses: docker/build-push-action@v4
+        uses: docker/build-push-action@v6
         with:
           context: ./servers/reader
           file: ./servers/reader/Dockerfile
@@ -177,7 +177,7 @@ jobs:
 
       - name: Build (and push if on master)
         id: docker_build
-        uses: docker/build-push-action@v4
+        uses: docker/build-push-action@v6
         with:
           context: ./servers/translator
           file: ./servers/translator/Dockerfile