👷‍♂️ Copy-paste the whole build bit from the working repo.

This probably won't work but it's a thing to try.

Author: coderanger

.github/workflows/main.yml

@@ -76,12 +76,12 @@ jobs:
         echo created=$(date -u +'%Y-%m-%dT%H:%M:%SZ') >> $GITHUB_OUTPUT
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v2
-    - name: Login to GitHub Container Registry
-      uses: docker/login-action@v3
+    - name: Login to Github Container Registry
+      uses: docker/login-action@v2
       with:
-        registry: ghcr.io
-        username: ${{ github.actor }}
-        password: ${{ secrets.GITHUB_TOKEN }}
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
     - name: Build and push
       uses: docker/build-push-action@v4
       with: