Feature/825 split up workflows unit tests and periodic runs

.gitattributes

@@ -4,11 +4,15 @@ doc/changes/changelog.md  linguist-generated=true
 .github/actions/python-environment/ext/get_poetry.py linguist-generated=true
 
 # PTB GitHub Workflows (CI/CD & Publishing)
-.github/workflows/build-and-publish.yml linguist-generated=true
-.github/workflows/cd.yml                linguist-generated=true
-.github/workflows/check-release-tag.yml linguist-generated=true
-.github/workflows/ci.yml                linguist-generated=true
-.github/workflows/gh-pages.yml          linguist-generated=true
-.github/workflows/matrix-*.yml          linguist-generated=true
-.github/workflows/pr-merge.yml          linguist-generated=true
-.github/workflows/report.yml            linguist-generated=true
+.github/workflows/build-and-publish.yml     linguist-generated=true
+.github/workflows/cd.yml                    linguist-generated=true
+.github/workflows/check-release-tag.yml     linguist-generated=true
+.github/workflows/checks.yml                linguist-generated=true
+.github/workflows/ci.yml                    linguist-generated=true
+.github/workflows/fast-tests.yml            linguist-generated=true
+.github/workflows/gh-pages.yml              linguist-generated=true
+.github/workflows/matrix-*.yml              linguist-generated=true
+.github/workflows/merge-gate.yml            linguist-generated=true
+.github/workflows/periodic-validation.yml   linguist-generated=true
+.github/workflows/pr-merge.yml              linguist-generated=true
+.github/workflows/report.yml                linguist-generated=true

.github/workflows/fast-tests-extension.yml

@@ -0,0 +1,26 @@
+name: Fast-Tests-Extension
+
+on:
+  workflow_call:
+
+jobs:
+  lint-imports:
+    name: Lint Imports
+    runs-on: ubuntu-24.04
+    permissions:
+      contents: read
+    steps:
+      - name: Check out Repository
+        id: check-out-repository
+        uses: actions/checkout@v6
+
+      - name: Set up Python & Poetry Environment
+        id: set-up-python-and-poetry-environment
+        uses: exasol/python-toolbox/.github/actions/python-environment@v7
+        with:
+          python-version: "3.10"
+          poetry-version: "2.3.0"
+
+      - name: Lint Imports
+        id: lint-imports
+        run: poetry run -- nox -s lint:import

.github/workflows/merge-gate-extension.yml

@@ -0,0 +1,11 @@
+name: Merge-Gate-Extension
+
+on:
+  workflow_call:
+
+jobs:
+  test-python-environment:
+    name: Test python-environment Action
+    uses: ./.github/workflows/test-python-environment.yml
+    permissions:
+      contents: read

.workflow-patcher.yml

@@ -1,5 +1,5 @@
 workflows:
-  - name: checks
+  - name: fast-tests
     step_customizations:
       - action: REPLACE
         job: run-unit-tests

doc/changes/unreleased.md

@@ -2,10 +2,27 @@
 
 ## Summary
 
+In this major release, several modifications were made to the PTB's workflow templates:
+
+* The periodic run which was previously executed in the `ci.yml` has been moved to its
+own `periodic-validation.yml` and will run weekly. This also has been modified to
+run the `slow-checks.yml` so that more complete linting and coverage information is
+sent to Sonar.
+* With the addition of `periodic-validation.yml`, the `pr-merge.yml` was reduced so that
+it only executes `gh-pages.yml`.
+* The unit tests job has been moved from `checks.yml` to its own `fast-tests.yml` file.
+* Workflow extensions were added to `fast-tests` and `merge-gate`. This allows users to
+add custom `fast-tests-extension.yml` and `merge-gate-extension.yml` files. For more
+details, check out the [Workflow Extensions](https://exasol.github.io/python-toolbox/main/user_guide/features/github_workflows/index.html#workflow-extensions) section.
+
 ## Bugfix
 
 * #563: Fixed merge-gate to prevent auto-merges from happening when integration tests failed
 
 ## Feature
 
 * #829: Extended removing a job from a workflow to also remove it from the `needs` of another job
+* #825: Created two workflows by splitting up previous ones:
+   * Moved the periodic jobs in `ci.yml` to its own `periodic-validation.yml`
+   * Moved the unit tests job in `checks.yml` to its own `fast-tests.yml`
+* #730: Added workflow extensions to `fast-tests` and `merge-gate`