Update lefthook requirement from ~> 0.6.3 to ~> 0.7.0 (#63)

Updates the requirements on [lefthook](https://github.com/Arkweid/lefthook) to permit the latest version.
- [Release notes](https://github.com/Arkweid/lefthook/releases)
- [Changelog](https://github.com/Arkweid/lefthook/blob/master/CHANGELOG.md)
- [Commits](evilmartians/lefthook@v0.6.7...v0.7.0)

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

Gemfile.lock

@@ -53,7 +53,7 @@ GEM
     gherkin (5.1.0)
     jaro_winkler (1.5.4)
     json (2.2.0)
-    lefthook (0.6.7)
+    lefthook (0.7.0)
     macaddr (1.7.2)
       systemu (~> 2.6.5)
     maruku (0.7.3)
@@ -137,7 +137,7 @@ DEPENDENCIES
   bundler (~> 2.0)
   colorize (~> 0.8)
   coveralls (~> 0.8)
-  lefthook (~> 0.6.3)
+  lefthook (~> 0.7.0)
   pry (~> 0.12.2)
   rake (~> 13.0)
   rspec (~> 3.8)

allure.gemspec

@@ -31,5 +31,5 @@ Gem::Specification.new do |s|
   s.add_development_dependency "simplecov", "~> 0.16"
   s.add_development_dependency "coveralls", "~> 0.8"
   s.add_development_dependency "semantic", "~> 1.6"
-  s.add_development_dependency "lefthook", "~> 0.6.3"
+  s.add_development_dependency "lefthook", "~> 0.7.0"
 end