feat(vcs/git): cascade verbosity for cloning

Since the method signature already provides an argument for controlling
verbosity, it is now passed down to the `update_submodules` callee.

Implements: #13329

Author: ByteB4rb1e

src/pip/_internal/vcs/git.py

@@ -331,7 +331,7 @@ def fetch_new(
         logger.info("Resolved %s to commit %s", url, rev_options.rev)
 
         #: repo may contain submodules
-        self.update_submodules(dest)
+        self.update_submodules(dest, verbosity=verbosity)
 
     def switch(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None:
         self.run_command(