build(deps): update dependency semantic-release to v15.13.3

This completes the work of adding basic Ruby/Bundler support to Renovate. It will now find all Gemfiles in a repository, extract dependencies from them, look up results on Rubygems, and raise PRs if updates are found.

Closes #932

Default was changed to false but text was not adjusted.

* https://renovatebot.com/docs/configuration-options/#pindigests
* https://github.com/renovatebot/renovate/blame/master/lib/config/definitions.js#L542

the preset package notes are written in the create-react-app github releases
https://github.com/facebook/create-react-app/releases

Fixes https://github.com/renovatebot/config-help/issues/139

Closes #2981

Adds support for updating the gradle version used in a project via the gradle-wrapper.
See https://docs.gradle.org/current/userguide/gradle_wrapper.html

This reverts commit bc40d480.

Because of https://github.com/sindresorhus/got/issues/690

Change github redirect links from renovatebot.com/gh/ to togithub.com

feat: maven datasource

This reverts commit 9af3ef2e.