Fix shell script name

.travis.yml

@@ -26,7 +26,7 @@ script:
   - chmod u+x before_ut.sh && ./before_ut.sh
   - go mod vendor && go test ./... -coverprofile=coverage.txt -covermode=atomic
   # integrate-test
-  - chmod +x integrate_test.sh && ./integtrate_test.sh
+  - chmod +x integrate_test.sh && ./integrate_test.sh
 
 after_success:
   - bash <(curl -s https://codecov.io/bash)