Bump overcommit from 0.67.1 to 0.68.0

Bumps [overcommit](https://github.com/sds/overcommit) from 0.67.1 to 0.68.0.
- [Release notes](https://github.com/sds/overcommit/releases)
- [Changelog](https://github.com/sds/overcommit/blob/main/CHANGELOG.md)
- [Commits](sds/overcommit@v0.67.1...v0.68.0)

---
updated-dependencies:
- dependency-name: overcommit
  dependency-version: 0.68.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Gemfile

@@ -12,7 +12,7 @@ curb = !Gem.win_platform?
 gem "pry", platforms: %i[mri]
 platforms :mri do
   gem "codecov", "~> 0.6" # For CodeCov
-  gem "overcommit", "~> 0.67"
+  gem "overcommit", "~> 0.68"
   # See: https://github.com/rubocop/rubocop-md/issues/14
   # gem "rubocop-md"
   gem "rubocop-minitest"

Gemfile.lock

@@ -65,7 +65,7 @@ GEM
     netrc (0.11.0)
     oauth-tty (1.0.5)
       version_gem (~> 1.1, >= 1.1.1)
-    overcommit (0.67.1)
+    overcommit (0.68.0)
       childprocess (>= 0.6.3, < 6)
       iniparse (~> 1.4)
       rexml (>= 3.3.9)
@@ -212,7 +212,7 @@ DEPENDENCIES
   minitest (~> 5.15.0)
   mocha
   oauth!
-  overcommit (~> 0.67)
+  overcommit (~> 0.68)
   pry
   pry-byebug
   rack (~> 3.1)