fixed typo

Author: daniel-sanche

ci/get_package_shards.py

@@ -22,7 +22,7 @@
 # Default weight for any package not listed is 1.
 PACKAGE_WEIGHTS = {
     "bigframes": 6,
-    "google-ai-generativelanguage": 4
+    "google-ai-generativelanguage": 4,
     "google-auth": 5,
     "google-cloud-compute": 12,
     "google-cloud-compute-v1beta": 12,