Update ci.yml

Author: j5ik2o

.github/workflows/ci.yml

@@ -49,7 +49,7 @@ jobs:
       JAVA_OPTS: -Xms2048M -Xmx2048M -Xss6M -XX:ReservedCodeCacheSize=256M -Dfile.encoding=UTF-8
       JVM_OPTS:  -Xms2048M -Xmx2048M -Xss6M -XX:ReservedCodeCacheSize=256M -Dfile.encoding=UTF-8
       AWS_REGION: ap-northeast-1
-      TEST_TIME_FACTOR: 3
+      TEST_TIME_FACTOR: 5
     steps:
       - uses: actions/checkout@v2.3.4
         with: