Fix yamllint (#6253)

.github/workflows/yaml-lint.yml

@@ -1,5 +1,7 @@
+---
 name: YAML lint
 
+# yamllint disable-line rule:truthy
 on:
   push:
     branches: [dev, beta, release]
@@ -20,3 +22,5 @@ jobs:
         uses: actions/checkout@v4.1.1
       - name: Run yamllint
         uses: frenck/action-yamllint@v1.5.0
+        with:
+          strict: true