Update all Docker tags

.github/workflows/docker.yml

@@ -30,12 +30,12 @@ jobs:
         uses: actions/checkout@v2.3.4
 
       - name: Build the container image
-        uses: docker/build-push-action@v2.5.0
+        uses: docker/build-push-action@v2.6.1
         with:
           repository: midcat
 
       - name: Push to GitHub Packages
-        uses: docker/build-push-action@v2.5.0
+        uses: docker/build-push-action@v2.6.1
         if: github.event_name == 'release' || github.event_name == 'push'
         with:
           username: ${{ github.actor }}
@@ -66,7 +66,7 @@ jobs:
         if: |
           (github.event_name == 'release' || github.event_name == 'push') &&
           contains(steps.check_dockerhub_credentials.outputs.missingsecrets, 'no')
-        uses: docker/build-push-action@v2.5.0
+        uses: docker/build-push-action@v2.6.1
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}

Dockerfile

@@ -14,7 +14,7 @@ COPY            . ./
 RUN             make install
 
 # minimalist runtime
-FROM alpine:3.13
+FROM alpine:3.14
 LABEL           org.label-schema.build-date=$BUILD_DATE \
                 org.label-schema.name="midcat" \
                 org.label-schema.description="" \