Update script for 9 shards.

scripts/generic-ci-tests.sh

@@ -173,7 +173,15 @@ END
                 ;;
 
             "7")
-                paver test_bokchoy -n $NUMBER_OF_BOKCHOY_THREADS --extra_args="-a shard_1=False,shard_2=False,shard_3=False,shard_4=False,shard_5=False,shard_6=False,a11y=False --with-flaky"
+                paver test_bokchoy -n $NUMBER_OF_BOKCHOY_THREADS --extra_args="-a 'shard_7' --with-flaky"
+                ;;
+
+            "8")
+                paver test_bokchoy -n $NUMBER_OF_BOKCHOY_THREADS --extra_args="-a 'shard_8' --with-flaky"
+                ;;
+
+            "9")
+                paver test_bokchoy -n $NUMBER_OF_BOKCHOY_THREADS --extra_args="-a shard_1=False,shard_2=False,shard_3=False,shard_4=False,shard_5=False,shard_6=False,shard_7=False,shard_8=False,a11y=False --with-flaky"
                 ;;
 
             # Default case because if we later define another bok-choy shard on Jenkins