1.2.x: Bump org.jruby.maven:mavengem-wagon in the maven-deps group

Bumps the maven-deps group with 1 update: [org.jruby.maven:mavengem-wagon](https://github.com/jruby/mavengem).


Updates `org.jruby.maven:mavengem-wagon` from 2.0.2 to 2.0.3
- [Commits](jruby/mavengem@mavengem-2.0.2...mavengem-2.0.3)

---
updated-dependencies:
- dependency-name: org.jruby.maven:mavengem-wagon
  dependency-version: 2.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: maven-deps
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pom.xml

@@ -140,7 +140,7 @@
       <extension>
         <groupId>org.jruby.maven</groupId>
         <artifactId>mavengem-wagon</artifactId>
-        <version>2.0.2</version>
+        <version>2.0.3</version>
       </extension>
     </extensions>
     <defaultGoal>install</defaultGoal>