Bump nokogiri and mini_portile2

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) and [mini_portile2](https://github.com/flavorjones/mini_portile). These dependencies needed to be updated together.

Updates `nokogiri` from 1.13.4 to 1.15.4
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.13.4...v1.15.4)

Updates `mini_portile2` from 2.8.0 to 2.8.4
- [Release notes](https://github.com/flavorjones/mini_portile/releases)
- [Changelog](https://github.com/flavorjones/mini_portile/blob/main/CHANGELOG.md)
- [Commits](flavorjones/mini_portile@v2.8.0...v2.8.4)

Updates `nokogiri` from 1.13.4 to 1.15.4
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.13.4...v1.15.4)

---
updated-dependencies:
- dependency-name: nokogiri
  dependency-type: direct:production
- dependency-name: mini_portile2
  dependency-type: direct:production
- dependency-name: nokogiri
  dependency-type: direct:production
...

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

Author: dependabot[bot]

Gemfile

@@ -19,10 +19,10 @@ gem('fuzzy-string-match')
 gem('hashie')
 gem('i18n', '1.8.2')
 gem('json-ld')
-gem('mini_portile2', '2.8.0')
+gem('mini_portile2', '2.8.4')
 gem('matrix')
 gem('multi_json', '1.14.1')
-gem('nokogiri', '1.13.4')
+gem('nokogiri', '1.15.4')
 gem('parallel', '1.19.1')
 gem('pry')
 gem('public_suffix', '4.0.5')

Gemfile.lock

@@ -128,17 +128,17 @@ GEM
     mime-types (3.4.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2023.0218.1)
-    mini_portile2 (2.8.0)
+    mini_portile2 (2.8.4)
     minitest (5.18.0)
     multi_json (1.14.1)
     multipart-post (2.3.0)
     mustermann (2.0.2)
       ruby2_keywords (~> 0.0.1)
     netrc (0.11.0)
-    nokogiri (1.13.4)
-      mini_portile2 (~> 2.8.0)
+    nokogiri (1.15.4)
+      mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
-    nokogiri (1.13.4-x86_64-linux)
+    nokogiri (1.15.4-x86_64-linux)
       racc (~> 1.4)
     parallel (1.19.1)
     parser (3.2.1.1)
@@ -148,7 +148,7 @@ GEM
       method_source (~> 1.0)
     public_suffix (4.0.5)
     raabro (1.4.0)
-    racc (1.6.2)
+    racc (1.7.1)
     rack (2.2.3)
     rack-protection (2.2.4)
       rack
@@ -266,9 +266,9 @@ DEPENDENCIES
   i18n (= 1.8.2)
   json-ld
   matrix
-  mini_portile2 (= 2.8.0)
+  mini_portile2 (= 2.8.4)
   multi_json (= 1.14.1)
-  nokogiri (= 1.13.4)
+  nokogiri (= 1.15.4)
   parallel (= 1.19.1)
   pry
   public_suffix (= 4.0.5)