Ruby ≥2.7 complains about ActiveSupport's lack of explicit handling of keyworded Time.at

[doriantaylor]

I'm sure we are familiar with the deprecation and eventual decommissioning of hashes as implicit keyword parameters (in 2.7 and 3, respectively). There is a formulation of Time.at(epoch, in: offset) that is hooked or wrapped or some such by ActiveSupport, which appears not to account explicitly for keyword arguments, causing the interpreter to complain.

Steps to reproduce

require 'time'
require 'active_support/time'

Time.at 31337, in: -28800
# /usr/local/lib/ruby/gems/2.7.0/gems/activesupport-6.1.1/lib/active_support/core_ext/time/calculations.rb:46: warning: Using the last argument as keyword parameters is deprecated
# => 1970-01-01 00:42:17 -0800

Expected behavior

No deprecation warning.

Actual behavior

Said deprecation warning.

System configuration

Rails version: N/A; ActiveSupport 6.1.1

Ruby version: 2.7.2