add separate compile step

should be run on every push to a branch to check for compilability

.gitea/workflows/compile.yaml

@@ -0,0 +1,17 @@
+name: Compile the repository
+on: [push]
+env:
+  REGISTRY: gitea.brudi.xyz
+  IMAGE_NAME: ${{ gitea.repository }}
+  USER: ${{ gitea.actor }}
+jobs:
+  compile:
+    runs-on: ubuntu-latest
+    container: catthehacker/ubuntu:act-latest
+    permissions:
+      contents: read
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+      - name: Build Container
+        run: docker build -t "${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest" .