Potential fix for code scanning alert no. 61: Clear-text logging of sensitive information

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: aarora79

credentials-provider/token_refresher.py

@@ -112,7 +112,7 @@ def _get_all_tokens() -> List[Tuple[Path, Dict]]:
         List of (filepath, token_data) tuples for all valid tokens
     """
     if not OAUTH_TOKENS_DIR.exists():
-        logger.error(f"OAuth tokens directory not found: {OAUTH_TOKENS_DIR}")
+        logger.error("OAuth tokens directory not found")
         return []
 
     all_tokens = []