Implement tooling to sync Helm charts (#1105)

Signed-off-by: Mohammed Naser <mnaser@vexxhost.com>
diff --git a/flake.nix b/flake.nix
index f29612c..4eec2f5 100644
--- a/flake.nix
+++ b/flake.nix
@@ -21,9 +21,9 @@
               go
               kubernetes-helm
               nixpkgs-fmt
+              patchutils
               poetry
               python311Packages.tox
-              vendir
             ];
           };
         }