Add yaml linter github action

.github/workflows/yamllint.yml

@@ -0,0 +1,23 @@
+---
+# MegaLinter GitHub Action configuration file
+# More info at https://oxsecurity.github.io/megalinter
+name: mega-linter-yaml
+
+on:
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    name: mega-linter-yaml
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@44c2b7a8a4ea60a981eaca3cf939b5f4305c123b # v4.1.5
+      with:
+        fetch-depth: 1
+
+    - name: yamllint
+      uses: oxsecurity/megalinter/flavors/ci_light@v7

.yaml-lint.yml

@@ -0,0 +1,31 @@
+---
+
+yaml-files:
+  - '*.yaml'
+  - '*.yml'
+  - '.yamllint'
+
+rules:
+  braces: enable
+  brackets: enable
+  colons: enable
+  commas: enable
+  comments: disable
+  comments-indentation: disable
+  document-end: disable
+  document-start: disable
+  empty-lines: enable
+  empty-values: disable
+  hyphens: enable
+  indentation: disable
+  key-duplicates: enable
+  key-ordering: disable
+  line-length: disable
+  new-line-at-end-of-file: enable
+  new-lines: enable
+  octal-values: disable
+  quoted-strings: disable
+  trailing-spaces: enable
+  truthy:
+    level: warning
+    check-keys: false