Bump govuk_publishing_components from 30.5.0 to 30.7.0

Bumps [govuk_publishing_components](https://github.com/alphagov/govuk_publishing_components) from 30.5.0 to 30.7.0.
- [Release notes](https://github.com/alphagov/govuk_publishing_components/releases)
- [Changelog](https://github.com/alphagov/govuk_publishing_components/blob/main/CHANGELOG.md)
- [Commits](alphagov/govuk_publishing_components@v30.5.0...v30.7.0)

---
updated-dependencies:
- dependency-name: govuk_publishing_components
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -136,7 +136,7 @@ GEM
     govuk_personalisation (0.12.0)
       plek (>= 1.9.0)
       rails (>= 6, < 8)
-    govuk_publishing_components (30.5.0)
+    govuk_publishing_components (30.7.0)
       govuk_app_config
       govuk_personalisation (>= 0.7.0)
       kramdown
@@ -182,7 +182,7 @@ GEM
     logstasher (2.1.5)
       activesupport (>= 5.2)
       request_store
-    loofah (2.18.0)
+    loofah (2.19.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -236,7 +236,7 @@ GEM
       nio4r (~> 2.0)
     racc (1.6.0)
     rack (2.2.4)
-    rack-proxy (0.7.2)
+    rack-proxy (0.7.4)
       rack
     rack-test (2.0.2)
       rack (>= 1.3)