Fix S607 start-process-with-partial-path

Author: hugovk

cherry_picker/test_cherry_picker.py

@@ -133,7 +133,8 @@ def tmp_git_repo_dir(tmpdir, cd, git_init, git_commit, git_config):
     try:
         git_init()
     except subprocess.CalledProcessError:
-        version = subprocess.run(("git", "--version"), capture_output=True)
+        git_version_cmd = "git", "--version"
+        version = subprocess.run(git_version_cmd, capture_output=True)
         # the output looks like "git version 2.34.1"
         v = version.stdout.decode("utf-8").removeprefix("git version ").split(".")
         if (int(v[0]), int(v[1])) < (2, 28):