Upgrade Dependencies (#146)

Motivation:
We should upgrade our dependencies to the latest version to ensure
compatibility.

Modification:
Upgraded Netty to
[4.1.111.Final](https://mvnrepository.com/artifact/io.netty/netty-all/4.1.111.Final)
and JUnit to
[5.10.3](https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter-api/5.10.3).

Result:
Up-to-date dependencies

pom.xml

@@ -96,7 +96,7 @@
         <dependency>
             <groupId>io.netty</groupId>
             <artifactId>netty-buffer</artifactId>
-            <version>4.1.104.Final</version>
+            <version>4.1.111.Final</version>
             <scope>compile</scope>
             <optional>true</optional>
         </dependency>
@@ -105,15 +105,15 @@
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-api</artifactId>
-            <version>5.10.0</version>
+            <version>5.10.3</version>
             <scope>test</scope>
         </dependency>
 
         <!-- https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter-engine -->
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-engine</artifactId>
-            <version>5.10.0</version>
+            <version>5.10.3</version>
             <scope>test</scope>
         </dependency>
     </dependencies>