Bump nokogiri from 1.15.4 to 1.16.4 in /updater

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.15.4 to 1.16.4.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.15.4...v1.16.4)

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

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

updater/Gemfile.lock

@@ -220,10 +220,10 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2022.0105)
     mini_mime (1.1.2)
-    mini_portile2 (2.8.4)
+    mini_portile2 (2.8.5)
     multi_xml (0.6.0)
     netrc (0.11.0)
-    nokogiri (1.15.4)
+    nokogiri (1.16.4)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     octokit (6.1.1)