Replace deprecated stable helm repository with bitnami (#1479)

* Replace deprecated stable repo with bitnami

Signed-off-by: Lauri Nevala <lauri.nevala@gmail.com>

src/main/helm/helm-repo-manager.ts

@@ -83,7 +83,7 @@ export class HelmRepoManager extends Singleton {
           repositories: []
         }));
       if (!repositories.length) {
-        await this.addRepo({ name: "stable", url: "https://kubernetes-charts.storage.googleapis.com/" });
+        await this.addRepo({ name: "bitnami", url: "https://charts.bitnami.com/bitnami" });
         return await this.repositories();
       }
       return repositories.map(repo => ({