[CI] Add YAML files lint job

Author: aobolensk

.github/workflows/yaml-lint.yml

@@ -0,0 +1,24 @@
+name: YAML Lint
+
+on:
+  pull_request:
+    paths:
+      - "**/*.yml"
+      - "**/*.yaml"
+  push:
+    paths:
+      - "**/*.yml"
+      - "**/*.yaml"
+  workflow_dispatch:
+
+jobs:
+  yaml-lint:
+    name: Validate YAML files
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Install yamllint
+        run: python3 -m pip install yamllint
+      - name: Run yamllint
+        run: python3 -m yamllint .

.yamllint

@@ -0,0 +1,5 @@
+extends: default
+rules:
+  line-length:
+    max: 120
+    level: error