Bump simplecov from 0.20.0 to 0.21.0 (#12107)

Bumps [simplecov](https://github.com/simplecov-ruby/simplecov) from 0.20.0 to 0.21.0.
- [Release notes](https://github.com/simplecov-ruby/simplecov/releases)
- [Changelog](https://github.com/simplecov-ruby/simplecov/blob/main/CHANGELOG.md)
- [Commits](https://github.com/simplecov-ruby/simplecov/compare/v0.20.0...v0.21.0)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile

@@ -164,7 +164,7 @@ group :test do
   gem "rspec-retry", "~> 0.6" # retry intermittently failing rspec examples
   gem "ruby-prof", "~> 1.4", require: false # ruby-prof is a fast code profiler for Ruby
   gem "shoulda-matchers", "~> 4.4.1", require: false # Simple one-liner tests for common Rails functionality
-  gem "simplecov", "~> 0.20.0", require: false # Code coverage with a powerful configuration library and automatic merging of coverage across test suites
+  gem "simplecov", "~> 0.21.0", require: false # Code coverage with a powerful configuration library and automatic merging of coverage across test suites
   gem "stackprof", "~> 0.2", require: false, platforms: :ruby # stackprof is a fast sampling profiler for ruby code, with cpu, wallclock and object allocation samplers
   gem "stripe-ruby-mock", "~> 3.0", require: "stripe_mock" # A drop-in library to test stripe without hitting their servers
   gem "test-prof", "~> 0.12" # Ruby Tests Profiling Toolbox

Gemfile.lock

@@ -230,7 +230,7 @@ GEM
       devise (>= 4.6)
     diff-lcs (1.4.4)
     distribution (0.8.0)
-    docile (1.3.3)
+    docile (1.3.4)
     dogstatsd-ruby (4.8.2)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
@@ -712,7 +712,7 @@ GEM
       sidekiq (>= 4.0, < 7.0)
       thor (>= 0.20, < 2.0)
     simple_oauth (0.3.1)
-    simplecov (0.20.0)
+    simplecov (0.21.0)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
       simplecov_json_formatter (~> 0.1)
@@ -948,7 +948,7 @@ DEPENDENCIES
   sidekiq (~> 6.1.2)
   sidekiq-cron (~> 1.1)
   sidekiq-unique-jobs (~> 6.0.25)
-  simplecov (~> 0.20.0)
+  simplecov (~> 0.21.0)
   sitemap_generator (~> 6.1)
   slack-notifier (~> 2.3)
   spring (~> 2.1)