Bump simplecov from 0.18.5 to 0.20.0 (#246)

Bumps [simplecov](https://github.com/simplecov-ruby/simplecov) from 0.18.5 to 0.20.0.
- [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...v0.20.0)

Signed-off-by: dependabot[bot] <[email protected]>

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

Gemfile.lock

@@ -74,10 +74,12 @@ GEM
     sawyer (0.8.2)
       addressable (>= 2.3.5)
       faraday (> 0.8, < 2.0)
-    simplecov (0.18.5)
+    simplecov (0.20.0)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
+      simplecov_json_formatter (~> 0.1)
     simplecov-html (0.12.3)
+    simplecov_json_formatter (0.1.2)
     telegram-bot-ruby (0.14.0)
       faraday
       inflecto