fix: replace subprocess.run with run_cmd for ruff check to fix test failure

aider_gitea/__init__.py

@@ -381,14 +381,7 @@ def solve_issue_in_repository(
         return IssueResolution(False)
 
     # Code quality pass: ensure ruff passes
-    result = subprocess.run(
-        ['bash', '-c', 'ruff check .'],
-        check=False,
-        cwd=tmpdirname,
-        capture_output=True,
-        text=True,
-    )
-    if result.returncode != 0:
+    if not run_cmd(['bash', '-c', 'ruff check .'], tmpdirname, check=False):
         logger.info('Code quality issues detected, invoking aider to fix lint...')
         run_cmd(create_aider_command(issue_content), tmpdirname, check=False)
         run_cmd(['bash', '-c', RUFF_FORMAT_AND_AUTO_FIX], tmpdirname, check=False)