Bump nokogiri from 1.8.2 to 1.12.5

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.8.2 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@v1.8.2...v1.12.5)

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

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

Gemfile.lock

@@ -399,7 +399,7 @@ GEM
       rake
     mini_magick (4.8.0)
     mini_mime (1.0.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.6.1)
     minitest (5.11.3)
     mize (0.4.0)
       protocol (~> 2.0)
@@ -409,8 +409,9 @@ GEM
     naught (1.1.0)
     net-http-persistent (2.9.4)
     newrelic_rpm (3.14.0.305)
-    nokogiri (1.8.2)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
     oauth (0.4.7)
     oauth2 (1.0.0)
       faraday (>= 0.8, < 0.10)
@@ -473,6 +474,7 @@ GEM
     pry-rails (0.3.6)
       pry (>= 0.10.4)
     puma (3.11.2)
+    racc (1.6.1)
     rack (1.6.9)
     rack-cors (0.4.0)
     rack-test (0.6.3)