Bump nokogiri from 1.18.3 to 1.18.4 (#84)

Address CVE-2025-24855 and CVE-2024-55549.

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

Author: dependabot[bot]

template/{{app_name}}/Gemfile.lock

@@ -226,24 +226,24 @@ GEM
     net-smtp (0.5.1)
       net-protocol
     nio4r (2.7.4)
-    nokogiri (1.18.3)
+    nokogiri (1.18.4)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
-    nokogiri (1.18.3-aarch64-linux-gnu)
+    nokogiri (1.18.4-aarch64-linux-gnu)
       racc (~> 1.4)
-    nokogiri (1.18.3-aarch64-linux-musl)
+    nokogiri (1.18.4-aarch64-linux-musl)
       racc (~> 1.4)
-    nokogiri (1.18.3-arm-linux-gnu)
+    nokogiri (1.18.4-arm-linux-gnu)
       racc (~> 1.4)
-    nokogiri (1.18.3-arm-linux-musl)
+    nokogiri (1.18.4-arm-linux-musl)
       racc (~> 1.4)
-    nokogiri (1.18.3-arm64-darwin)
+    nokogiri (1.18.4-arm64-darwin)
       racc (~> 1.4)
-    nokogiri (1.18.3-x86_64-darwin)
+    nokogiri (1.18.4-x86_64-darwin)
       racc (~> 1.4)
-    nokogiri (1.18.3-x86_64-linux-gnu)
+    nokogiri (1.18.4-x86_64-linux-gnu)
       racc (~> 1.4)
-    nokogiri (1.18.3-x86_64-linux-musl)
+    nokogiri (1.18.4-x86_64-linux-musl)
       racc (~> 1.4)
     orm_adapter (0.5.0)
     parallel (1.26.3)