HADOOP-18034. Bump mina-core from 2.0.16 to 2.1.5 in /hadoop-project. (#3706)

Reviewed-by: Akira Ajisaka <aajisaka@apache.org>
Signed-off-by: Ayush Saxena <ayushsaxena@apache.org>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

hadoop-project/pom.xml

@@ -1015,7 +1015,7 @@
       <dependency>
         <groupId>org.apache.mina</groupId>
         <artifactId>mina-core</artifactId>
-        <version>2.0.16</version>
+        <version>2.1.5</version>
       </dependency>
       <dependency>
         <groupId>org.apache.sshd</groupId>