actions: use 1.15 for release, 1.15 and 1.16 for tests

.github/workflows/docker.yml

@@ -1,5 +1,4 @@
 name: Publish Docker Image
-
 on:
   push:
     branches:
@@ -7,46 +6,37 @@ on:
 
     tags:
       - 'v*'
-
 jobs:
   push:
     name: Push
     runs-on: ubuntu-20.04
-
     # Always run against a tag, even if the commit into the tag has [docker skip] within the commit message.
     if: "!contains(github.ref, 'develop') || (!contains(github.event.head_commit.message, 'skip docker') && !contains(github.event.head_commit.message, 'docker skip'))"
-
     steps:
       - name: Code Checkout
         uses: actions/checkout@v2
-
       - name: Docker Meta
         id: docker_meta
         uses: crazy-max/ghaction-docker-meta@v1
         with:
           images: ghcr.io/pterodactyl/wings
-
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v1
-
       - name: Install buildx
         uses: docker/setup-buildx-action@v1
         with:
           version: v0.5.1
-
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v1
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.REGISTRY_TOKEN }}
-
       - name: Get Build Information
         id: build_info
         run: |
           echo "::set-output name=version_tag::${GITHUB_REF/refs\/tags\//}"
           echo "::set-output name=short_sha::$(git rev-parse --short HEAD)"
-
       - name: Release Production Build
         uses: docker/build-push-action@v2
         if: "!contains(github.ref, 'develop')"
@@ -56,7 +46,6 @@ jobs:
           labels: ${{ steps.docker_meta.outputs.labels }}
           push: true
           tags: ${{ steps.docker_meta.outputs.tags }}
-
       - name: Release Development Build
         uses: docker/build-push-action@v2
         if: "contains(github.ref, 'develop')"