Bump nokogiri from 1.16.5 to 1.16.6

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.16.5 to 1.16.6.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/v1.16.6/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.16.5...v1.16.6)

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

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

Gemfile

@@ -111,7 +111,7 @@ gem 'httparty', '~> 0.22.0'
 gem 'slack-notifier', '~> 2.4.0'
 
 # css styles for emails
-gem 'nokogiri', '~> 1.16.5'
+gem 'nokogiri', '~> 1.16.6'
 gem 'premailer-rails', '~> 1.12.0'
 
 # filtering

Gemfile.lock

@@ -198,7 +198,7 @@ GEM
       faraday (>= 1, < 3)
     faraday-net_http (3.1.0)
       net-http
-    ffi (1.17.0)
+    ffi (1.17.0-x86_64-linux-gnu)
     flamegraph (0.9.5)
     glob (0.4.0)
     globalid (1.2.1)
@@ -313,7 +313,7 @@ GEM
       net-protocol
     net-ssh (7.1.0)
     nio4r (2.7.3)
-    nokogiri (1.16.5-x86_64-linux)
+    nokogiri (1.16.6-x86_64-linux)
       racc (~> 1.4)
     oauth2 (2.0.9)
       faraday (>= 0.17.3, < 3.0)
@@ -615,7 +615,7 @@ DEPENDENCIES
   minitest-utils (~> 0.4.8)
   mocha (~> 2.3.0)
   mysql2 (~> 0.5.6)
-  nokogiri (~> 1.16.5)
+  nokogiri (~> 1.16.6)
   omniauth-google-oauth2 (~> 1.1.2)
   omniauth-oauth2 (~> 1.8.0)
   omniauth-rails_csrf_protection (~> 1.0.2)