- update versions of actions, use dependabot

.github/dependabot.yml

@@ -0,0 +1,7 @@
+# Set update schedule for GitHub Actions
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/main.yml

@@ -18,38 +18,39 @@ jobs:
     steps:
       # Get the repository's code
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       # https://github.com/docker/setup-qemu-action
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@v1
+        uses: docker/setup-qemu-action@v2
 
       # https://github.com/docker/setup-buildx-action
       - name: Set up Docker Buildx
         id: buildx
-        uses: docker/setup-buildx-action@v1
+        uses: docker/setup-buildx-action@v2
 
+      # https://github.com/docker/#-action
       - name: Login to Docker Hub
         if: github.event_name != 'pull_request'
-        uses: docker/#-action@v1
+        uses: docker/#-action@v2
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
+      # https://github.com/docker/metadata-action
       - name: Docker meta
         id: meta_webhook_docker
-        uses: docker/metadata-action@v3
+        uses: docker/metadata-action@v4
         with:
-          # list of Docker images to use as base name for tags
           images: |
             almir/webhook
-          # Docker tags based on the following events/attributes
           tags: |
             type=ref,event=branch
             type=semver,pattern={{version}}
 
+      # https://github.com/docker/build-push-action
       - name: Build and push
-        uses: docker/build-push-action@v2
+        uses: docker/build-push-action@v4
         with:
           context: .
           platforms: linux/386,linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64/v8