Create yaml-check.yml

Signed-off-by: Ettore Di Giacinto <mudler@users.noreply.github.com>

.github/workflows/yaml-check.yml

@@ -0,0 +1,20 @@
+name: json-yaml-validate 
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  json-yaml-validate:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: json-yaml-validate
+        id: json-yaml-validate
+        uses: GrantBirki/json-yaml-validate@v2.7.1