⬆️ Bump nio4r from 2.7.3 to 2.7.4 in /builder

Bumps [nio4r](https://github.com/socketry/nio4r) from 2.7.3 to 2.7.4.
- [Release notes](https://github.com/socketry/nio4r/releases)
- [Changelog](https://github.com/socketry/nio4r/blob/main/changes.md)
- [Commits](socketry/nio4r@v2.7.3...v2.7.4)

---
updated-dependencies:
- dependency-name: nio4r
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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

builder/Gemfile.lock

@@ -154,7 +154,7 @@ GEM
     net-smtp (0.5.0)
       net-protocol
     netrc (0.11.0)
-    nio4r (2.7.3)
+    nio4r (2.7.4)
     nokogiri (1.16.7-aarch64-linux)
       racc (~> 1.4)
     nokogiri (1.16.7-arm64-darwin)