fix missing dep setup for osbuilder chart

.github/workflows/chart.yml

@@ -2,6 +2,8 @@ name: Publish Chart
 
 on:
   push:
+    paths:
+      - charts/osbuilder
     branches:
       - master
 
@@ -20,6 +22,10 @@ jobs:
           git config user.name "$GITHUB_ACTOR"
           git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
 
+      - name: Add repos
+        run: |
+          helm repo add cert-manager https://charts.jetstack.io
+
       - name: Run chart-releaser
         id: release
         uses: helm/chart-releaser-action@v1.5.0