GODRIVER-2564 exit 1 on gen corpus (#1091)

Author: prestonvasquez

.evergreen/run-fuzz.sh

@@ -64,5 +64,9 @@ done
 if [ -d $PROJECT_DIRECTORY/fuzz ]; then
 	echo "Tarring up fuzz directory"
 	tar -czf $PROJECT_DIRECTORY/fuzz.tgz $PROJECT_DIRECTORY/fuzz
+
+	# Exit with code 1 to indicate that errors occurred in fuzz tests, resulting in corpus files being generated.
+	# This will trigger a notification to be sent to the Go Driver team.
+	exit 1
 fi