Bump version to 9.2.0

Diff

v9.1.0...192c12c6

Checklist

• Diff link is up-to-date.
• Check the release notes: https://gitlab.com/api/v4/projects/4176070/repository/changelog?version=9.2.0
• Based on the diff and the release notes, version.rb is updated, according to SemVer.
• Test impact on
  • Upgrade `gilab-styles` to 9.2.0 (gitlab-org/gitlab!105850 - merged)

Release notes (preview)

9.2.0 (2022-12-20)

Added (3 changes)

• Enable Lint/AmbiguousRegexpLiteral cop (merge request)
• Enable new Layout cops (merge request)
• Enable new Performance/* cops (merge request)

Fixed (1 change)

• Don't flag conditionals preceded by multiline method definitions (merge request)

Changed (3 changes)

• RSpec/DescribedClass: Configure SkipBlocks: true (merge request)
• Performance/FlatMap: Configure EnabledForFlattenWithoutParams: true (merge request)
• Use "consistent" style for indentation rules (merge request)

Via

curl https://gitlab.com/api/v4/projects/4176070/repository/changelog?version=9.2.0 | jq -r ".notes" | pbcopy