Bump nokogiri from 1.9.1 to 1.11.7

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.9.1 to 1.11.7.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.9.1...v1.11.7)

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

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

Author: dependabot[bot]

Gemfile.lock

@@ -101,12 +101,13 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.7)
     maruku (0.7.0)
     mercenary (0.3.6)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.5.3)
     minitest (5.12.0)
     multipart-post (2.1.1)
     net-dns (0.9.0)
-    nokogiri (1.9.1)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.11.7)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     octokit (4.21.0)
       faraday (>= 0.9)
       sawyer (~> 0.8.0, >= 0.5.3)
@@ -117,6 +118,7 @@ GEM
     pygments.rb (0.6.3)
       posix-spawn (~> 0.3.6)
       yajl-ruby (~> 1.2.0)
+    racc (1.5.2)
     rb-fsevent (0.11.0)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)