first attemp build action, likely not working

.forgejo/workflows/build.yml

@@ -0,0 +1,15 @@
+on:
+  push:
+
+jobs:
+  build-base:
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4
+      - name: buildx-base
+        uses: https://github.com/docker/setup-buildx-action
+      - name: Build and push
+        uses: https://github.com/docker/build-push-action@v6
+        with:
+          push: true
+          tags: gitea.simcop2387.info/simcop2387/postgresql-base:latest