Add lint tests for yaml files

Author: bidoubiwa

.github/dependabot.yml

@@ -12,6 +12,6 @@ updates:
   versioning-strategy: increase
   rebase-strategy: disabled
   ignore:
-      - dependency-name: "eslint*"
-      - dependency-name: "babel-eslint"
-      - dependency-name: "*prettier*"
+    - dependency-name: "eslint*"
+    - dependency-name: "babel-eslint"
+    - dependency-name: "*prettier*"

.github/workflows/tests.yml

@@ -56,3 +56,13 @@ jobs:
         run: yarn --dev
       - name: Run style check
         run: yarn style
+
+  yaml-lint:
+    name: yaml-lint
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: yaml-lint
+      uses: ibiqlik/action-yamllint@v3
+      with:
+        config_file: .yamllint.yml

.yamllint.yml

@@ -0,0 +1,12 @@
+extends: default
+ignore: |
+  node_modules
+
+rules:
+  # 80 chars should be enough, but don't fail if a line is longer
+  line-length: disable
+
+  # don't bother me with this rule
+  document-start: disable
+  brackets: disable
+  truthy: disable