Bump maven-source-plugin from 3.0.0 to 3.1.0
Bump maven-source-plugin from 3.0.0 to 3.1.0

Bumps [maven-source-plugin](https://github.com/apache/maven-source-plugin) from 3.0.0 to 3.1.0.
- [Release notes](https://github.com/apache/maven-source-plugin/releases)
- [Commits](https://github.com/apache/maven-source-plugin/compare/maven-source-plugin-3.0.0...maven-source-plugin-3.1.0)
hakan42/java-opencage-geocoder,hakan42/java-opencage-geocoder