Upgrade GitHub Actions and enable dependabot for them

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: daily

.github/workflows/docker.yml

@@ -29,17 +29,17 @@ jobs:
 
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 0
 
-      - uses: docker/setup-qemu-action@v1
-      - uses: docker/setup-buildx-action@v1
+      - uses: docker/setup-qemu-action@v2
+      - uses: docker/setup-buildx-action@v2
 
 
       - name: Detect correct Git ref for image build
         id: git
-        uses: actions/github-script@v3
+        uses: actions/github-script@v6
         with:
           script: |
             let out = {ref: 'HEAD', ver: ''};
@@ -89,7 +89,7 @@ jobs:
 
 
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v1
+        uses: docker/login-action@v2
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
@@ -97,7 +97,7 @@ jobs:
         if: ${{ matrix.publish }}
 
       - name: Login to Quay.io
-        uses: docker/login-action@v1
+        uses: docker/login-action@v2
         with:
           registry: quay.io
           username: ${{ secrets.QUAYIO_ROBOT_USERNAME }}
@@ -105,7 +105,7 @@ jobs:
         if: ${{ matrix.publish }}
 
       - name: Login to Docker Hub
-        uses: docker/login-action@v1
+        uses: docker/login-action@v2
         with:
           username: ${{ secrets.DOCKERHUB_BOT_USER }}
           password: ${{ secrets.DOCKERHUB_BOT_PASS }}
@@ -155,7 +155,7 @@ jobs:
             && startsWith(github.ref, 'refs/tags/docker/') }}
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Parse release version from Git tag
         id: release
@@ -167,11 +167,10 @@ jobs:
         working-directory: ./docker/coturn
 
       - name: Release on GitHub
-        uses: actions/create-release@v1
+        uses: softprops/action-gh-release@v1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
-          tag_name: docker/${{ steps.release.outputs.VERSION }}
-          release_name: docker/${{ steps.release.outputs.VERSION }}
+          name: docker/${{ steps.release.outputs.VERSION }}
           body: |
             [Changelog](${{ steps.changelog.outputs.LINK }})