Feat: GitHub connector (#12314)

### What problem does this PR solve?

Feat: GitHub connector

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

common/data_source/github/rate_limit_utils.py

@@ -0,0 +1,24 @@
+import time
+import logging
+from datetime import datetime
+from datetime import timedelta
+from datetime import timezone
+
+from github import Github
+
+
+def sleep_after_rate_limit_exception(github_client: Github) -> None:
+    """
+    Sleep until the GitHub rate limit resets.
+
+    Args:
+        github_client: The GitHub client that hit the rate limit
+    """
+    sleep_time = github_client.get_rate_limit().core.reset.replace(
+        tzinfo=timezone.utc
+    ) - datetime.now(tz=timezone.utc)
+    sleep_time += timedelta(minutes=1)  # add an extra minute just to be safe
+    logging.info(
+        "Ran into Github rate-limit. Sleeping %s seconds.", sleep_time.seconds
+    )
+    time.sleep(sleep_time.total_seconds())