Bump git from 1.19.1 to 2.0.0

Bumps [git](https://github.com/ruby-git/ruby-git) from 1.19.1 to 2.0.0.
- [Release notes](https://github.com/ruby-git/ruby-git/releases)
- [Changelog](https://github.com/ruby-git/ruby-git/blob/master/CHANGELOG.md)
- [Commits](ruby-git/ruby-git@v1.19.1...v2.0.0)

---
updated-dependencies:
- dependency-name: git
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -42,8 +42,10 @@ GEM
     ffi (1.15.5)
     forwardable-extended (2.6.0)
     gemoji (4.1.0)
-    git (1.19.1)
+    git (2.0.0)
+      activesupport (>= 5.0)
       addressable (~> 2.8)
+      process_executer (~> 1.1)
       rchardet (~> 1.8)
     github-pages (231)
       github-pages-health-check (= 1.18.2)
@@ -237,7 +239,8 @@ GEM
       sawyer (~> 0.9)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (5.0.4)
+    process_executer (1.1.0)
+    public_suffix (5.0.5)
     racc (1.7.3)
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)