Use GitHub action instead of an app for validating PR title

.github/semantic.yml

@@ -1,7 +0,0 @@
-titleOnly: true
-types:
-  - feat
-  - fix
-  - chore
-  - refactor
-  - docs

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

@@ -0,0 +1,26 @@
+name: 'Lint PR title'
+
+on:
+  pull_request_target:
+    types:
+      - opened
+      - edited
+      - synchronize
+
+jobs:
+  lint:
+    name: Validate PR title
+    if: github.repository == 'KonradSzwarc/devscard'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: amannn/action-semantic-pull-request@v5
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          types: |
+            feat
+            fix
+            chore
+            refactor
+            docs
+          requireScope: false