test: removed tests

Author: n0rfas

git_analytics/engine.py

@@ -1,6 +1,6 @@
 from typing import Dict, Iterable, Protocol
 
-from git import Commit
+from git.objects.commit import Commit
 
 from .history import CommitContext, GitHistoryWalker
 

git_analytics/history.py

@@ -2,7 +2,8 @@
 from datetime import datetime
 from typing import Iterator
 
-from git import Commit, InvalidGitRepositoryError, Repo
+from git import InvalidGitRepositoryError, Repo
+from git.objects.commit import Commit
 
 
 @dataclass(frozen=True)