Remove self hosted runners

.github/workflows/code_checks.yml

@@ -0,0 +1,36 @@
+name: Code checks
+
+on:
+  schedule:
+    - cron: '0 04 * * *'
+  push:
+    branches:
+      - main
+  pull_request:
+    types:
+      - opened
+      - reopened
+      - synchronize
+  workflow_dispatch:
+
+jobs:
+  code_checks:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python 3.12
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.12
+      - name: Install cubitpy
+        run: |
+          python -m pip install --upgrade pip
+          pip install .[dev]
+      - name: Code checks
+        run: |
+          pre-commit install --install-hooks
+          if [ "${GITHUB_REF}" = "refs/heads/main" ]; then
+            SKIP=no-commit-to-branch pre-commit run --all-files
+          else
+            pre-commit run --all-files
+          fi

.github/workflows/testing_with_secrets.yml → .github/workflows/cubitpy_test_suite_with_secrets.yml

@@ -1,4 +1,4 @@
-name: Protected test suite (can access cubit secrets)
+name: Protected CubitPy test suite (can access cubit secrets)
 
 on:
   schedule:
@@ -18,7 +18,7 @@ env:
 
 jobs:
   testing_coreform:
-    name: Test suite with Coreform
+    name: CubitPy tests with Coreform
     runs-on: ubuntu-latest
     environment:
       # Use the trusted environment only for PRs authored by an COLLABORATOR (no approval needed); all others use the untrusted environment (someone has to approve the workflow run).