add missing jar

(cherry picked from commit f8ab5bea)

testing/notification-test-core/pom.xml

@@ -130,10 +130,10 @@
             <version>0.19.0</version>
         </dependency>
         <dependency>
-            <groupId>io.jsonwebtoken</groupId>
-            <artifactId>jjwt</artifactId>
-            <version>0.12.1</version>
-        </dependency>
+		    <groupId>io.jsonwebtoken</groupId>
+		    <artifactId>jjwt</artifactId>
+		    <version>0.9.1</version>
+		</dependency>
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>