fix: upgrade org.jsmpp:jsmpp from 2.3.7 to 2.3.11 (#550)

Snyk has created this PR to upgrade org.jsmpp:jsmpp from 2.3.7 to 2.3.11.

See this package in Maven Repository:
https://mvnrepository.com/artifact/org.jsmpp/jsmpp/

See this project in Snyk:
https://app.snyk.io/org/duttarnab/project/5862231b-1cbe-4256-b5bb-d5a569987542?utm_source=github&utm_medium=referral&page=upgrade-pr

casa/app/pom.xml

@@ -255,7 +255,7 @@
     	<dependency>
             <groupId>org.jsmpp</groupId>
             <artifactId>jsmpp</artifactId>
-            <version>2.3.7</version>
+            <version>2.3.11</version>
         </dependency>
 
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