Bump git from 1.7.0 to 1.13.0

Bumps [git](https://github.com/ruby-git/ruby-git) from 1.7.0 to 1.13.0.
- [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@v1.7.0...v1.13.0)

---
updated-dependencies:
- dependency-name: git
  dependency-type: direct:production
...

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

Gemfile.lock

@@ -101,7 +101,8 @@ GEM
     ffi (1.11.3)
     front_matter_parser (1.0.0)
     gemoji (4.0.1)
-    git (1.7.0)
+    git (1.13.0)
+      addressable (~> 2.8)
       rchardet (~> 1.8)
     globalid (1.1.0)
       activesupport (>= 5.0)