Bump org.apache.maven.plugins:maven-jar-plugin from 2.4 to 2.6

Bumps org.apache.maven.plugins:maven-jar-plugin from 2.4 to 2.6.

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-jar-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

modules/swagger-jersey-jaxrs/pom.xml

@@ -33,7 +33,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-jar-plugin</artifactId>
-                <version>2.4</version>
+                <version>2.6</version>
                 <configuration>
                     <archive>
                         <manifestEntries>

pom.xml

@@ -154,7 +154,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-jar-plugin</artifactId>
-                <version>3.3.0</version>
+                <version>2.6</version>
                 <configuration>
                     <excludes>
                         <exclude>**/logback.xml</exclude>