chore: add semantic pr validation (#66)

Signed-off-by: Thomas Schuetz <thomas.schuetz@t-sc.eu>

.github/workflows/semantic_pr.yaml

@@ -0,0 +1,53 @@
+name: Semantic PR Validation
+on:
+  pull_request_target:
+    types:
+      - opened
+      - edited
+      - synchronize
+defaults:
+  run:
+    shell: bash
+jobs:
+  validate:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Validate Pull Request
+        uses: amannn/action-semantic-pull-request@v5.2.0
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          # Configure which types are allowed.
+          # Default: https://github.com/commitizen/conventional-commit-types
+          types: |
+            feat
+            fix
+            build
+            chore
+            ci
+            docs
+            perf
+            refactor
+            revert
+            style
+            test
+            deps
+          scopes: |
+            deps
+          # Configure that a scope must always be provided.
+          requireScope: false
+          # When using "Squash and merge" on a PR with only one commit, GitHub
+          # will suggest using that commit message instead of the PR title for the
+          # merge commit, and it's easy to commit this by mistake. Enable this option
+          # to also validate the commit message for one commit PRs.
+          validateSingleCommit: true
+          # Configure additional validation for the subject based on a regex.
+          # This ensures the subject doesn't start with an uppercase character.
+          subjectPattern: ^(?![A-Z]).+$
+          # If `subjectPattern` is configured, you can use this property to override
+          # the default error message that is shown when the pattern doesn't match.
+          # The variables `subject` and `title` can be used within the message.
+          subjectPatternError: |
+            The subject "{subject}" found in the pull request title "{title}"
+            didn't match the configured pattern. Please ensure that the subject
+            doesn't start with an uppercase character.