Bump nokogiri from 1.18.3 to 1.18.6

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.18.3 to 1.18.6.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.18.3...v1.18.6)

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

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

Author: dependabot[bot]

Gemfile

@@ -30,7 +30,7 @@ gem "mimemagic"
 gem "net-imap"
 gem "net-pop"
 gem "net-smtp"
-gem "nokogiri", "1.18.3"
+gem "nokogiri", "1.18.6"
 gem "oauth2"
 gem "omniauth"
 gem "omniauth-oauth2"

Gemfile.lock

@@ -403,7 +403,7 @@ GEM
       net-protocol
     netrc (0.11.0)
     nio4r (2.7.4)
-    nokogiri (1.18.3)
+    nokogiri (1.18.6)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     notiffany (0.1.3)
@@ -803,7 +803,7 @@ DEPENDENCIES
   net-imap
   net-pop
   net-smtp
-  nokogiri (= 1.18.3)
+  nokogiri (= 1.18.6)
   oauth2
   omniauth
   omniauth-auth0