match latest config from https://cipherli.st/
Updated ciphers and SSL settings to match latest recommendation by @RaymiiOrg on https://cipherli.st. Replaces https://github.com/gitlabhq/gitlabhq/pull/8019.
/cc @maxlazio @dosire
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Updated ciphers and SSL settings to match latest recommendation by @RaymiiOrg on https://cipherli.st. Replaces https://github.com/gitlabhq/gitlabhq/pull/8019.
/cc @maxlazio @dosire