fixup!: only install helm deps if changes

Author: jsjoeio

.github/workflows/build.yaml

@@ -71,11 +71,13 @@ jobs:
             ci/helm-chart/**
 
       - name: Install helm
+        if: steps.changed-files.outputs.any_changed == 'true'
         uses: azure/setup-helm@v3.3
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Install helm kubeval plugin
+        if: steps.changed-files.outputs.any_changed == 'true'
         run: helm plugin install https://github.com/instrumenta/helm-kubeval
 
       - name: Lint Helm chart