v0.18.0

CHANGELOG extracted from https://gitlab.wikimedia.org/repos/releng/cli/-/blob/main/CHANGELOG.md

• Added more command examples
• Improved top level short command descriptions
• Development environment (mw docker):
  • Added long form docker-compose command description
  • Fix incorrect grouping of keycloak command
  • Image updates:
    • eventgate-wikimedia: 2022-06-07-105344-production -> 2022-11-28-190331-production
    • graphite-statsd: 1.1.10-3 -> 1.1.10-4
    • releng/quibble-buster-php74: 1.4.4 -> 1.4.7-s1
    • dev/buster-php74-fpm: 1.0.0-s1 -> 1.0.0-s3
    • shellbox* 2022-03-10-142520 -> 2022-12-05-111819