fix(travis): use aichive link to download rocketmq binary (apache#312)

Author: ShannonDing

.travis.yml

@@ -26,7 +26,7 @@ before_install:
 
 before_script:
   - cd ${TRAVIS_HOME}
-  - wget http://us.mirrors.quenda.co/apache/rocketmq/4.3.2/rocketmq-all-4.3.2-bin-release.zip
+  - wget https://archive.apache.org/dist/rocketmq/4.3.2/rocketmq-all-4.3.2-bin-release.zip
   - unzip rocketmq-all-4.3.2-bin-release.zip
   - cd rocketmq-all-4.3.2-bin-release
   - perl -i -pe's/-Xms8g -Xmx8g -Xmn4g/-Xms2g -Xmx2g -Xmn1g/g' bin/runbroker.sh