Release 2.1.0

What's Changed

• Add sample weight to LightGBM by @jpleitao in #147
• Bump maven-javadoc-plugin version by @artpdr in #148
• Use Portal OSSRH Staging API by @artpdr in #149
• fix(lightgbm): ensuring c++ resources created in swig are released after training by @jpleitao in #150
• Give id token permissions to fix codecov step in master by @artpdr in #151

New Contributors

• @jpleitao made their first contribution in #147

Full Changelog: 2.0.1...2.1.0