Fix build so that it runs on PRs (#10)

.github/workflows/build copy.yml.original

@@ -1,30 +0,0 @@
-name: build
-on:
-  push:
-    branches: [ main ]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-        with:
-          fetch-depth: 0 # get entire git tree, required for nerdbank gitversioning
-      - name: Login to GitHub Container Registry
-        uses: docker/login-action@v2
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-      - name: Build and push the Docker image
-        shell: pwsh
-        run: |
-          Push-Location src
-          $version = (nbgv get-version -f json | ConvertFrom-Json).SimpleVersion
-          Write-Host "Version $version"
-          Pop-Location
-
-          docker build . --tag ghcr.io/g3rv4/getmoarfediverse:latest --tag "ghcr.io/g3rv4/getmoarfediverse:$version"
-          docker push ghcr.io/g3rv4/getmoarfediverse:latest
-          docker push "ghcr.io/g3rv4/getmoarfediverse:$version"

.github/workflows/build.yml

@@ -1,7 +1,7 @@
 name: build
 on:
   pull_request:
-    types: [ synchronize ]
+    types: [ synchronize, opened ]
 
 jobs:
   build: