[release-v2.7] Restrict when to show the validation suggestion (#3485)

.github/workflows/validation-comment.yaml

@@ -5,6 +5,10 @@ on:
     branches:
       - dev-v*
       - release-v*
+    paths:
+      - 'assets/**'
+      - 'charts/**'
+      - 'packages/**'
 
 jobs:
   validation-comment:
@@ -25,7 +29,7 @@ jobs:
               `## Validation steps
               - Ensure all container images have repository and tag on the same level to ensure that all container images are included in rancher-images.txt which are used by airgap customers.
               <pre>
-              Ex:- 
+              Ex:-
                 longhorn-controller:
                   repository: rancher/hardened-sriov-cni
                   tag: v2.6.3-build20230913