Bump nokogiri from 1.11.2 to 1.12.5 (heroku#84)

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.11.2 to 1.12.5.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.11.2...v1.12.5)

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

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

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

Author: dependabot[bot]

Gemfile.lock

@@ -85,13 +85,13 @@ GEM
       nokogiri (~> 1)
       rake
     mini_mime (1.0.2)
-    mini_portile2 (2.5.0)
+    mini_portile2 (2.6.1)
     minitest (5.11.3)
     msgpack (1.4.2)
     multi_json (1.13.1)
     nio4r (2.5.7)
-    nokogiri (1.11.2)
-      mini_portile2 (~> 2.5.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
       racc (~> 1.4)
     pg (0.21.0)
     puma (3.12.6)