Bump nokogiri from 1.13.1 to 1.13.4 (PR #940)

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.13.1 to 1.13.4.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/v1.13.4/CHANGELOG.md)
- [Commits](https://github.com/sparklemotion/nokogiri/compare/v1.13.1...v1.13.4)

---
updated-dependencies:
- dependency-name: nokogiri
  dependency-type: indirect
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile.lock

@@ -303,7 +303,7 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2022.0105)
     mini_mime (1.1.2)
-    mini_portile2 (2.7.1)
+    mini_portile2 (2.8.0)
     minitest (5.15.0)
     mono_logger (1.1.1)
     msgpack (1.4.5)
@@ -312,8 +312,8 @@ GEM
       ruby2_keywords (~> 0.0.1)
     mysql2 (0.5.3)
     nio4r (2.5.8)
-    nokogiri (1.13.1)
-      mini_portile2 (~> 2.7.0)
+    nokogiri (1.13.4)
+      mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
     parallel (1.21.0)
     parser (3.1.0.0)