Chef Server - 14.15.6

](https://github.com/chef/chef-server/tree/14.15.6) (2022-05-02)

Merged Pull Requests

• Bump activesupport from 7.0.2.3 to 7.0.2.4 in /src/oc_bifrost/oc-bifrost-pedant #3283 (dependabot[bot])

Changes since 14.14.1 release

Merged Pull Requests

• Bump activesupport from 7.0.2.3 to 7.0.2.4 in /src/oc_bifrost/oc-bifrost-pedant #3283 (dependabot[bot])
• Bump activesupport from 7.0.2.3 to 7.0.2.4 in /oc-chef-pedant #3282 (dependabot[bot])
• Non default api_fqdn / bookshelf examples #3270 (sean-horn)
• remove opscode-chef-mover service #3257 (marcparadise)
• Bump sdoc from 2.3.1 to 2.3.2 in /src/oc-id #3277 (dependabot[bot])
• Bump omnibus-software from 518f3f8 to 8f141a6 in /omnibus #3278 (dependabot[bot])
• Bump rspec-rails from 5.1.1 to 5.1.2 in /src/oc-id #3279 (dependabot[bot])
• opensearch_index recipe is not applied if elasticsearch['enable'] = false #3273 (jashaik)
• updating cert creation for universal platform compatibility #3269 (johnmccrae)
• Add el 8 builders #3264 (vinay-satish)
• Bump omnibus from 55e74ac to 27c37fc in /omnibus #3267 (dependabot[bot])
• Bump omnibus-software from 960cb6e to 518f3f8 in /omnibus #3266 (dependabot[bot])
• Remove unsupported migrations (< 12.17.15) #3256 (marcparadise)
• Bump pg from 1.3.4 to 1.3.5 in /src/chef-server-ctl #3252 (dependabot[bot])
• Bump mixlib-shellout from 3.2.5 to 3.2.7 in /oc-chef-pedant #3258 (dependabot[bot])
• Bump omnibus-software from 5947560 to 960cb6e in /omnibus #3259 (dependabot[bot])