sysutils/rubygem-chef-api: Update to 0.10.10

• Mark DEPRECATED and set EXPIRATION_DATE to 2021-12-31
• Update WWW

Changes: https://github.com/chef-boneyard/chef-api/blob/master/CHANGELOG.md
Reference: https://github.com/chef-boneyard/chef-api/blob/master/README.md#deprecated