ci(repo): pull request linter

Signed-off-by: Oliver Bähler <oliverbaehler@hotmail.com>

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,18 +1,7 @@
 <!--
-# General contribution criteria
+Read the contribution guidelines before creating a pull request.
+
+https://github.com/projectcapsule/capsule/blob/main/CONTRIBUTING.md
 
 Thanks for spending some time for improving and fixing Capsule!
-
-We're still working on the outline of the contribution guidelines but we're
-following ourselves these points:
-
-- reference a previously opened issue: https://docs.github.com/en/github/writing-on-github/autolinked-references-and-urls#issues-and-pull-requests 
-- including a sentence or two in the commit description for the
-  changelog/release notes
-- splitting changes into several and documented small commits
-- limit the git subject to 50 characters and write as the continuation of the
-  sentence "If applied, this commit will ..."
-- explain what and why in the body, if more than a trivial change, wrapping at
-  72 characters
-
 -->

.github/workflows/check-pr.yml

@@ -0,0 +1,48 @@
+name: "Check Pull Request"
+
+on:
+  pull_request_target:
+    types:
+      - opened
+      - edited
+      - synchronize
+
+permissions:
+  pull-requests: read
+
+jobs:
+  main:
+    name: Validate PR title
+    runs-on: ubuntu-latest
+    steps:
+      - uses: amannn/action-semantic-pull-request@47b15d52c5c30e94a17ec87eb8dd51ff5221fed9
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          types: |
+            chore
+            ci
+            docs
+            feat
+            fix
+            test
+            sec
+          requireScope: false  
+          scopes: |
+            all
+            chart
+            operator
+            manifest
+            website
+            e2e
+            release
+            repo
+            deps
+            make
+          wip: true
+          # If the PR only contains a single commit, the action will validate that
+          # it matches the configured pattern.
+          validateSingleCommit: true
+          # Related to `validateSingleCommit` you can opt-in to validate that the PR
+          # title matches a single commit to avoid confusion.
+          validateSingleCommitMatchesPrTitle: true

.github/workflows/helm-test.yml

@@ -43,6 +43,10 @@ jobs:
             echo -e '\033[0;32mDocumentation up to date\033[0m ✔'
           fi
 
+      - name: Run chart-testing (install)
+        run: make helm-test
+        if: steps.list-changed.outputs.changed == 'true'
+
       # ATTENTION: This is a workaround for the upcoming ApiVersion Conversions for the capsule CRDs
       # With this workflow the current docker image is build and loaded into kind, otherwise the install fails
       # In the future this must be removed and the chart-testing-action must be used