Bump testng from 6.8.21 to 7.7.0 in /rocketmq-jms/spring

Bumps [testng](https://github.com/cbeust/testng) from 6.8.21 to 7.7.0.
- [Release notes](https://github.com/cbeust/testng/releases)
- [Changelog](https://github.com/cbeust/testng/blob/master/CHANGES.txt)
- [Commits](https://github.com/cbeust/testng/compare/testng-6.8.21...7.7.0)

---
updated-dependencies:
- dependency-name: org.testng:testng
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/rocketmq-jms/spring/pom.xml b/rocketmq-jms/spring/pom.xml
index 798392b..adcec60 100644
--- a/rocketmq-jms/spring/pom.xml
+++ b/rocketmq-jms/spring/pom.xml
@@ -75,7 +75,7 @@
         <dependency>
             <groupId>org.testng</groupId>
             <artifactId>testng</artifactId>
-            <version>6.8.21</version>
+            <version>7.7.0</version>
             <scope>test</scope>
         </dependency>
     </dependencies>