fixup! Add persistence capability for benchmarking results on AWS S3 …

…from manual pipeline run

Add docstring to _default_branch method

benchmarks/result/metadata.py

@@ -31,6 +31,7 @@ class ResultMetadata(BenchmarkSerialization):
 
     @branch.default
     def _default_branch(self) -> str:
+        """Set the current checkout branch."""
         repo = git.Repo(search_parent_directories=True)
         current_branch = repo.active_branch.name
         return current_branch