cicd: run on every pull request, but only deploy on testing

.forgejo/workflows/pull_request.yml

@@ -0,0 +1,20 @@
+on:
+  pull_request:
+
+jobs:
+  test:
+    runs-on: docker
+    container:
+      image: ghcr.io/catthehacker/ubuntu:act-22.04
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+          cache-dependency-path: '**/requirements.dev.txt'
+      - name: Install dependencies
+        working-directory: core
+        run: pip3 install -r requirements.dev.txt
+      - name: Run django tests
+        working-directory: core
+        run: python3 manage.py test

.forgejo/workflows/testing.yml

@@ -2,6 +2,7 @@ on:
   push:
     branches:
       - testing
+
 jobs:
   test:
     runs-on: docker