Bump simplecov from 0.18.5 to 0.19.0

Bumps [simplecov](https://github.com/simplecov-ruby/simplecov) from 0.18.5 to 0.19.0.
- [Release notes](https://github.com/simplecov-ruby/simplecov/releases)
- [Changelog](https://github.com/simplecov-ruby/simplecov/blob/main/CHANGELOG.md)
- [Commits](simplecov-ruby/simplecov@v0.18.5...v0.19.0)

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

Gemfile.lock

@@ -504,7 +504,7 @@ GEM
       jwt (>= 1.5, < 3.0)
       multi_json (~> 1.10)
     simple_oauth (0.3.1)
-    simplecov (0.18.5)
+    simplecov (0.19.0)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
     simplecov-html (0.12.2)