Bump nokogiri from 1.10.2 to 1.10.5

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.10.2 to 1.10.5.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/master/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.10.2...v1.10.5)

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

Author: dependabot[bot]

Gemfile.lock

@@ -148,7 +148,7 @@ GEM
       slack-ruby-bot (>= 0.10.5)
     newrelic_rpm (6.2.0.354)
     nio4r (2.3.1)
-    nokogiri (1.10.2)
+    nokogiri (1.10.5)
       mini_portile2 (~> 2.4.0)
     oj (3.7.12)
     parallel (1.17.0)