fix: use consistent quoting in expansion file (#595)

Author: baileympearson

.evergreen/orchestration/drivers_orchestration.py

@@ -316,7 +316,7 @@ def run(opts):
     # Handle the cluster uri.
     uri = resp.get("mongodb_auth_uri", resp["mongodb_uri"])
     expansion_yaml.touch()
-    expansion_yaml.write_text(expansion_yaml.read_text() + f"\nMONGODB_URI: {uri}")
+    expansion_yaml.write_text(expansion_yaml.read_text() + f'\nMONGODB_URI: "{uri}"')
     uri_txt.write_text(uri)
     LOGGER.info(f"Cluster URI: {uri}")