Resets any language or manager` additionalBranchPrefix` values to empty string. Add the `compatibility:additionalBranchPrefix` prefix to restore previous behavior.
BREAKING CHANGE: Removal of default `additionalBranchPrefix` values will cause branch names to change for docker/helm/buildkite/cargo/homebrew.
* point to renovate discussion for readme.md
* point to renovate discussions for contributing.md
* point to renovate discussions for configuration-options.md
* point to renovate discussions for configuration-templates.md