ci: check pr titles (#180)

* ci: check pr titles

Signed-off-by: Kostis Kapelonis <kostis.kapelonis@octopus.com>

* ci: pin pr check

Signed-off-by: Kostis Kapelonis <kostis.kapelonis@octopus.com>

---------

Signed-off-by: Kostis Kapelonis <kostis.kapelonis@octopus.com>

Author: kostis-codefresh

.github/workflows/pr-title-check.yml

@@ -0,0 +1,53 @@
+name: "Check PR title"
+
+on:
+  pull_request_target:
+    types:
+      - opened
+      - edited
+      - synchronize
+
+permissions:
+  contents: read
+
+jobs:
+  main:
+    permissions:
+      pull-requests: read  # for amannn/action-semantic-pull-request to analyze PRs
+      statuses: write  # for amannn/action-semantic-pull-request to mark status of analyzed PR
+    name: Validate PR title
+    runs-on: ubuntu-latest
+    steps:
+      - uses: amannn/action-semantic-pull-request@48f256284bd46cdaab1048c3721360e808335d50  # v6.1.1
+        with:
+          # Configure which types are allowed (newline delimited).
+          # Default: https://github.com/commitizen/conventional-commit-types
+          types: |
+            feat
+            fix
+            docs
+            style
+            refactor
+            perf
+            test
+            build
+            ci
+            chore
+            revert
+
+          # Configure which scopes are allowed (newline delimited).
+          scopes: |
+            http
+            grpc
+            tls
+            tcp
+            header-based-routing
+            mirroring
+            testing
+            deps
+            example
+
+          # Configure that a scope must always be provided.
+          requireScope: false
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}