[STORM-3864] Bump gson from 2.8.0 to 2.8.9 in /integration-test (#3480)

* Bump gson from 2.8.0 to 2.8.9 in /integration-test

Bumps [gson](https://github.com/google/gson) from 2.8.0 to 2.8.9.
- [Release notes](https://github.com/google/gson/releases)
- [Changelog](https://github.com/google/gson/blob/master/CHANGELOG.md)
- [Commits](https://github.com/google/gson/compare/gson-parent-2.8.0...gson-parent-2.8.9)

---
updated-dependencies:
- dependency-name: com.google.code.gson:gson
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

* Update DEPENDENCY-LICENSES

Change version of Gson from 2.8.0 to 2.8.9 in DEPENDENCY-LICENSES

* Update DEPENDENCY-LICENSES

The license name is in a different format for gson:2.8.9

* Update DEPENDENCY-LICENSES

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Bipin Prasad <bipinprasad@apache.org>
diff --git a/DEPENDENCY-LICENSES b/DEPENDENCY-LICENSES
index fb53447..a7cc64f 100644
--- a/DEPENDENCY-LICENSES
+++ b/DEPENDENCY-LICENSES
@@ -2,6 +2,10 @@
 List of third-party dependencies grouped by their license type.
 
 
+    Apache-2.0
+
+        * Gson (com.google.code.gson:gson:2.8.9 - https://github.com/google/gson/gson)
+
     Apache License
 
         * HttpClient (commons-httpclient:commons-httpclient:3.0.1 - http://jakarta.apache.org/commons/httpclient/)
@@ -271,7 +275,6 @@
         * Graphite Integration for Metrics (io.dropwizard.metrics:metrics-graphite:3.2.6 - http://metrics.dropwizard.io/metrics-graphite/)
         * Gson (com.google.code.gson:gson:2.2.4 - http://code.google.com/p/google-gson/)
         * Gson (com.google.code.gson:gson:2.3.1 - http://code.google.com/p/google-gson/)
-        * Gson (com.google.code.gson:gson:2.8.0 - https://github.com/google/gson/gson)
         * Guava: Google Core Libraries for Java (com.google.guava:guava:16.0.1 - http://code.google.com/p/guava-libraries/guava)
         * Guava: Google Core Libraries for Java (com.google.guava:guava:17.0 - http://code.google.com/p/guava-libraries/guava)
         * Guava: Google Core Libraries for Java (com.google.guava:guava:27.0.1-jre - https://github.com/google/guava/guava)
diff --git a/integration-test/pom.xml b/integration-test/pom.xml
old mode 100755
new mode 100644
index b3db6e4..e04aae3
--- a/integration-test/pom.xml
+++ b/integration-test/pom.xml
@@ -84,7 +84,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.8.0</version>
+            <version>2.8.9</version>
         </dependency>
         <dependency>
             <groupId>com.google.code.findbugs</groupId>