Build(deps): Bump crack from 0.4.3 to 0.4.4

Bumps [crack](https://github.com/jnunemaker/crack) from 0.4.3 to 0.4.4.
- [Release notes](https://github.com/jnunemaker/crack/releases)
- [Changelog](https://github.com/jnunemaker/crack/blob/master/History)
- [Commits](https://github.com/jnunemaker/crack/compare/v0.4.3...v0.4.4)

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

Gemfile.lock

@@ -90,8 +90,7 @@ GEM
       cbor (~> 0.5.9)
       openssl-signature_algorithm (~> 1.0)
     cppjieba_rb (0.3.3)
-    crack (0.4.3)
-      safe_yaml (~> 1.0.0)
+    crack (0.4.4)
     crass (1.0.6)
     css_parser (1.7.1)
       addressable
@@ -365,7 +364,6 @@ GEM
       guess_html_encoding (>= 0.0.4)
       nokogiri (>= 1.6.0)
     rubyzip (2.3.0)
-    safe_yaml (1.0.5)
     sanitize (5.2.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.8.0)