operator-sdk: build all binaries

Currently the repo provides 3 binaries. The 2 that were missing are used in upstream docker images. But to use dockerTools instead, these need to be packaged with nix!

@moduon MT-1075

pkgs/development/tools/operator-sdk/default.nix

@@ -29,6 +29,8 @@ buildGoModule rec {
   doCheck = false;
 
   subPackages = [
+    "cmd/ansible-operator"
+    "cmd/helm-operator"
     "cmd/operator-sdk"
   ];