Bump coveralls and simplecov

Bumps [coveralls](https://coveralls.io) and [simplecov](https://github.com/simplecov-ruby/simplecov). These dependencies needed to be updated together.

Updates `coveralls` from 0.7.1 to 0.8.23

Updates `simplecov` from 0.22.0 to 0.16.1
- [Release notes](https://github.com/simplecov-ruby/simplecov/releases)
- [Changelog](https://github.com/simplecov-ruby/simplecov/blob/main/CHANGELOG.md)
- [Commits](simplecov-ruby/simplecov@v0.22.0...v0.16.1)

---
updated-dependencies:
- dependency-name: coveralls
  dependency-type: direct:development
  update-type: version-update:semver-minor
- dependency-name: simplecov
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -180,12 +180,12 @@ GEM
       sass-rails (< 5.1)
       sprockets (< 4.0)
     concurrent-ruby (1.2.2)
-    coveralls (0.7.1)
-      multi_json (~> 1.3)
-      rest-client
-      simplecov (>= 0.7)
-      term-ansicolor
-      thor
+    coveralls (0.8.23)
+      json (>= 1.8, < 3)
+      simplecov (~> 0.16.1)
+      term-ansicolor (~> 1.3)
+      thor (>= 0.19.4, < 2.0)
+      tins (~> 1.6)
     crack (0.4.5)
       rexml
     crass (1.0.6)
@@ -211,8 +211,6 @@ GEM
       warden (~> 1.2.3)
     diff-lcs (1.5.0)
     docile (1.4.0)
-    domain_name (0.5.20190701)
-      unf (>= 0.0.5, < 1.0.0)
     easy_diff (1.0.0)
     elasticsearch (7.8.0)
       elasticsearch-api (= 7.8.0)
@@ -291,9 +289,6 @@ GEM
       webrick
     high_voltage (3.1.2)
     highline (2.1.0)
-    http-accept (1.7.0)
-    http-cookie (1.0.5)
-      domain_name (~> 0.5)
     i18n (1.14.1)
       concurrent-ruby (~> 1.0)
     jmespath (1.6.2)
@@ -392,7 +387,6 @@ GEM
       timeout
     net-smtp (0.3.3)
       net-protocol
-    netrc (0.11.0)
     ng-rails-csrf (0.1.0)
     nio4r (2.5.9)
     nokogiri (1.15.3)
@@ -489,11 +483,6 @@ GEM
     responders (3.1.0)
       actionpack (>= 5.2)
       railties (>= 5.2)
-    rest-client (2.1.0)
-      http-accept (>= 1.7.0, < 2.0)
-      http-cookie (>= 1.0.2, < 2.0)
-      mime-types (>= 1.16, < 4.0)
-      netrc (~> 0.8)
     rexml (3.2.6)
     rollbar (3.4.0)
     rspec-core (3.12.2)
@@ -550,12 +539,11 @@ GEM
       rexml (~> 3.2, >= 3.2.5)
       rubyzip (>= 1.2.2, < 3.0)
       websocket (~> 1.0)
-    simplecov (0.22.0)
+    simplecov (0.16.1)
       docile (~> 1.1)
-      simplecov-html (~> 0.11)
-      simplecov_json_formatter (~> 0.1)
-    simplecov-html (0.12.3)
-    simplecov_json_formatter (0.1.4)
+      json (>= 1.8, < 3)
+      simplecov-html (~> 0.10.0)
+    simplecov-html (0.10.2)
     smarf_doc (1.0.0)
     sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
@@ -599,9 +587,6 @@ GEM
       thread_safe (~> 0.1)
     uglifier (4.2.0)
       execjs (>= 0.3.0, < 3)
-    unf (0.1.4)
-      unf_ext
-    unf_ext (0.0.8.2)
     unicode-display_width (2.0.0)
     utf8-cleaner (1.0.0)
       activesupport