fix: Apply isort import sorting fixes

- Fix import sorting in __init__.py and test_github_auth.py
- All linting checks now pass locally
- This should resolve CI failures

Author: garotm

githubauthlib/__init__.py

@@ -5,14 +5,9 @@
 from various system-specific secure storage solutions.
 """
 
-from .github_auth import (
-    CredentialHelperError,
-    GitHubAuthError,
-    InvalidTokenError,
-    PlatformNotSupportedError,
-    TokenNotFoundError,
-    get_github_token,
-)
+from .github_auth import (CredentialHelperError, GitHubAuthError,
+                          InvalidTokenError, PlatformNotSupportedError,
+                          TokenNotFoundError, get_github_token)
 
 __version__ = "2.0.0"
 __author__ = "garotm"

tests/test_github_auth.py

@@ -4,13 +4,9 @@
 import unittest
 from unittest.mock import patch
 
-from githubauthlib import (
-    CredentialHelperError,
-    InvalidTokenError,
-    PlatformNotSupportedError,
-    TokenNotFoundError,
-    get_github_token,
-)
+from githubauthlib import (CredentialHelperError, InvalidTokenError,
+                           PlatformNotSupportedError, TokenNotFoundError,
+                           get_github_token)
 
 
 class TestGitHubAuth(unittest.TestCase):