raise exceptions on git push error

Author: TimidRobot

scripts/shared.py

@@ -108,7 +108,7 @@ def push_changes(repo_path):
     try:
         repo = Repo(repo_path)
         origin = repo.remote(name="origin")
-        origin.push()
+        origin.push().raise_if_error()
         logging.info("Changes pushed")
     except InvalidGitRepositoryError:
         raise QuantifyingException(f"Invalid Git repository at {repo_path}", 2)