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

Author: renovate[bot]

.github/workflows/build.yml

@@ -52,7 +52,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build and push
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: "{{defaultContext}}:docker/elasticsearch"
           push: true
@@ -75,7 +75,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build and push
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: "{{defaultContext}}:docker/kibana"
           push: true
@@ -96,7 +96,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build and push
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: "{{defaultContext}}:webapp-next"
           push: true