Revert "Bump nokogiri from 1.15.4 to 1.16.5"

This reverts commit acf8aaa.

Author: YuKitAs

Gemfile.lock

@@ -98,6 +98,7 @@ GEM
     marcel (1.0.4)
     method_source (1.1.0)
     mini_mime (1.1.5)
+    mini_portile2 (2.8.6)
     minitest (5.23.0)
     net-imap (0.3.7)
       date
@@ -109,7 +110,7 @@ GEM
     net-smtp (0.5.0)
       net-protocol
     nio4r (2.7.3)
-    nokogiri (1.16.5-x86_64-linux)
+    nokogiri (1.15.6-x86_64-linux)
       racc (~> 1.4)
     parallel (1.24.0)
     parser (3.3.1.0)
@@ -206,7 +207,8 @@ GEM
       actionpack (>= 5.2)
       activesupport (>= 5.2)
       sprockets (>= 3.0.0)
-    sqlite3 (1.7.3-x86_64-linux)
+    sqlite3 (1.7.3)
+      mini_portile2 (~> 2.8.0)
     strscan (3.1.0)
     thor (1.3.1)
     timeout (0.4.1)