Force calls to 'buck audit config android --json' to use buck2

Summary: Need to make sure these inner invocations of `buck` use `buck2`, `buck1` is going to be completely removed and will stop working.

Reviewed By: navidqar

Differential Revision: D63890084

fbshipit-source-id: f09792ff91a53847aa61b892766dd051fc38a048

pyredex/utils.py

@@ -252,7 +252,7 @@ def add_android_sdk_path(self, path: str) -> None:
         )
 
     def _load_android_buckconfig_values(self) -> typing.Dict[str, typing.Any]:
-        cmd = ["buck", "audit", "config", "android", "--json"]
+        cmd = ["buck2", "audit", "config", "android", "--json"]
         rdfb = self.root_dir_for_buck
         cwd = rdfb if rdfb is not None else os.getcwd()
         # Set NO_BUCKD to minimize disruption to any currently running buckd