Log Message:
devel/ruby-rspec-mocks: update to 3.12.1

3.12.1 (2022-12-10)

Bug Fixes:

* Remove empty diff marker when a diff only contains console codes.
  (Jon Rowe, #1506)

* Show keyword vs hash diff marker when arguments are not `==`
  (Jon Rowe, #1506)

* Change check to detect frozen objects to rescue errors rather than
  pre-empting by checking `frozen?` due to some objects mis-behaving.
  (Keegan Roth, #1401)

* Prevent unfulfilled expectations using `expect_any_instance_of` across a
  class inheritance boundary from raising rather than failing.
  (Jon Rowe, #1496)

* Prevent a misleading error message when using `allow(...).not_to` with
  unsupported matchers.  (Phil Pirozhkov, #1503)