Upgrade to alpine 3.16.2

.github/workflows/docker.yml

@@ -4,7 +4,7 @@ name: CI
 on:
   push:
     branches:
-      - 'master'
+      - 'main'
 
 jobs:
   docker:
@@ -12,16 +12,16 @@ jobs:
     steps:
       -
         name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v1
+        uses: docker/setup-buildx-action@v2
       -
         name: Login to DockerHub
-        uses: docker/login-action@v1
+        uses: docker/login-action@v2
         with:
           username: ${{ secrets.DOCKER_HUB_USERNAME }}
           password: ${{ secrets.DOCKER_HUB_SECRET }}
       -
         name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         
       -
         name: Build and Push from Makefile