Log Message:
devel/ruby-simplecov: update to 0.21.2

0.21.2 (2021-01-09)
==========

## Bugfixes
* `maximum_coverage_drop` won't fail any more if `.last_run.json` is still in \ 
the old format. Thanks [@petertellgren](https://github.com/petertellgren)
* `maximum_coverage_drop` won't fail if an expectation is specified for a \ 
previous unrecorded criterion, it will just pass (there's nothing, so nothing to \ 
drop)
* fixed bug in `maximum_coverage_drop` calculation that could falsely report it \ 
had dropped for minimal differences

0.21.1 (2021-01-04)
==========

## Bugfixes
* `minimum_coverage_by_file` works again as expected (errored out before 😱)

0.21.0 (2021-01-03)
==========

The "Collate++" release making it more viable for big CI setups by \ 
limiting memory consumption. Also includes some nice new additions for branch \ 
coverage settings.

## Enhancements
* Performance of `SimpleCov.collate` improved - it should both run faster and \ 
consume much less memory esp. when run with many files (memory consumption \ 
should not increase with number of files any more)
* Can now define the minimum_coverage_by_file, maximum_coverage_drop and \ 
refuse_coverage_drop by branch as well as line coverage. Thanks to \ 
[@jemmaissroff](https://github.com/jemmaissroff)
* Can set primary coverage to something other than line by setting \ 
`primary_coverage :branch` in SimpleCov Configuration. Thanks to \ 
[@jemmaissroff](https://github.com/jemmaissroff)

## Misc
* reduce gem size by splitting Changelog into `Changelog.md` and a pre 0.18 \ 
`Changelog.old.md`, the latter of which is not included in the gem
* The interface of `ResultMeger.merge_and_store` is changed to support the \ 
`collate` performance improvements mentioned above. It's not considered an \ 
official API, hence this is not in the breaking section. For people using it to \ 
merge results from different machines, it's recommended to migrate to \ 
[collate](https://github.com/simplecov-ruby/simplecov#merging-test-runs-under-different-execution-environments).

0.20.0 (2020-11-29)
==========

The "JSON formatter" release. Starting now a JSON formatter is \ 
included by default in the release. This is mostly done for Code Climate \ 
reasons, you can find more details [in this \ 
issue](https://github.com/codeclimate/test-reporter/issues/413).
Shipping with so much by default is sub-optimal, we know. It's the long term \ 
plan to also provide `simplecov-core` without the HTML or JSON formatters for \ 
those who don't need them/for other formatters to rely on.

## Enhancements
* `simplecov_json_formatter` included by default \ 
([docs](https://github.com/simplecov-ruby/simplecov#json-formatter)), this \ 
should enable the Code Climate test reporter to work again once it's updated
* invalidate internal cache after switching `SimpleCov.root`, should help with \ 
some bugs

0.19.1 (2020-10-25)
==========

## Bugfixes

* No more warnings triggered by `enable_for_subprocesses`. Thanks to \ 
[@mame](https://github.com/mame)
* Avoid trying to patch `Process.fork` when it isn't available. Thanks to \ 
[@MSP-Greg](https://github.com/MSP-Greg)