Fix order of environment setup and git module import

The environment setup must happen before the `git` module is imported, otherwise GitPython won't be able to find the Git executable and raise an exception that causes the ClusterFuzz fuzzer runs to fail.

fuzzing/fuzz-targets/fuzz_submodule.py

@@ -3,7 +3,6 @@
 import os
 import tempfile
 from configparser import ParsingError
-from git import Repo, GitCommandError, InvalidGitRepositoryError
 from utils import (
     setup_git_environment,
     handle_exception,
@@ -12,7 +11,7 @@
 
 # Setup the git environment
 setup_git_environment()
-
+from git import Repo, GitCommandError, InvalidGitRepositoryError
 
 def TestOneInput(data):
     fdp = atheris.FuzzedDataProvider(data)