v1.3.9: Migrate to new container registry

.github/workflows/build.yml

@@ -12,7 +12,6 @@ jobs:
     steps:
       - id: prepare
         name: Prepare environment variables
-        uses: actions/checkout@v2
         run: |
           echo ::set-output name=SOURCE_NAME::${GITHUB_REF#refs/*/}
           echo ::set-output name=SOURCE_BRANCH::${GITHUB_REF#refs/heads/}
@@ -20,16 +19,15 @@ jobs:
 
   build:
     name: GitHub Package Registry
-    id: ghpr
     runs-on: ubuntu-latest
     needs: [prepare-data]
     steps:
     - uses: actions/checkout@v2
     - name: Login to GitHub Package Registry
-      run: echo ${{ secrets.GITHUB_TOKEN }} | docker login https://docker.pkg.github.com -u luketainton --password-stdin
+      run: echo ${{ secrets.PAT }} | docker login ghcr.io -u luketainton --password-stdin
     - name: Build image for GitHub Package Registry
-      run: docker build . --file Dockerfile --tag docker.pkg.github.com/luketainton/ipilot/ipilot:${{ needs.prepare-data.outputs.tag }} --tag docker.pkg.github.com/luketainton/ipilot/ipilot:latest
+      run: docker build . --file Dockerfile --tag ghcr.io/luketainton/ipilot:${{ needs.prepare-data.outputs.tag }} --tag ghcr.io/luketainton/ipilot:latest
     - name: Push image to GitHub Package Registry
       run: |
-        docker push docker.pkg.github.com/luketainton/ipilot/ipilot:latest
-        docker push docker.pkg.github.com/luketainton/ipilot/ipilot:${{ needs.prepare-data.outputs.tag }}
+        docker push ghcr.io/luketainton/ipilot:latest
+        docker push ghcr.io/luketainton/ipilot:${{ needs.prepare-data.outputs.tag }}