[CONFIG] [Github Actions] new tool added: yamllint

.github/workflows/docker-image.yml

@@ -17,7 +17,11 @@ jobs:
     - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4
     - name: Build the Docker image
       run: make compose/rebuild
-    - name: Run test in Docker image
+    - name: Lint in Docker image
+      run: make compose/lint
+    - name: Test in Docker image
+      run: make compose/test
+    - name: Run in Docker image
       run: make compose/run
     - name: Tag Docker image
       run: docker tag algorithm-exercises-ts:latest algorithm-exercises-ts:${{ github.sha }}

.github/workflows/yamllint.yml

@@ -0,0 +1,23 @@
+---
+name: YAML lint
+
+on: # yamllint disable-line rule:truthy
+  push:
+    branches: ["main", "develop", "feature/*"]
+  pull_request:
+    branches: ["main"]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4
+
+      - name: Install yamllint
+        run: pip install yamllint
+
+      - name: Lint YAML files
+        run: >
+          yamllint --strict .
+          && echo '✔  Your code looks good.'