Bump govspeak from 8.3.4 to 8.4.0

Bumps [govspeak](https://github.com/alphagov/govspeak) from 8.3.4 to 8.4.0.
- [Changelog](https://github.com/alphagov/govspeak/blob/main/CHANGELOG.md)
- [Commits](alphagov/govspeak@v8.3.4...v8.4.0)

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

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

Gemfile.lock

@@ -178,13 +178,13 @@ GEM
       rake (>= 13)
     googleapis-common-protos-types (1.16.0)
       google-protobuf (>= 3.18, < 5.a)
-    govspeak (8.3.4)
-      actionview (>= 6)
-      addressable (>= 2.3.8, < 3)
-      govuk_publishing_components (>= 35.1)
+    govspeak (8.4.0)
+      actionview (>= 6, < 7.2.2)
+      addressable (>= 2.3.8, < 2.8.8)
+      govuk_publishing_components (>= 35.1, < 43.5.1)
       htmlentities (~> 4)
-      i18n (>= 0.7)
-      kramdown (>= 2.3.1)
+      i18n (>= 0.7, < 1.14.7)
+      kramdown (>= 2.3.1, < 2.4.1)
       nokogiri (~> 1.12)
       rinku (~> 2.0)
       sanitize (~> 6)
@@ -643,7 +643,7 @@ GEM
     ruby-progressbar (1.13.0)
     ruby2_keywords (0.0.5)
     rubyzip (2.3.2)
-    sanitize (6.1.0)
+    sanitize (6.1.3)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
     sass-embedded (1.77.8)
@@ -668,10 +668,10 @@ GEM
       rexml (~> 3.2, >= 3.2.5)
       rubyzip (>= 1.2.2, < 3.0)
       websocket (~> 1.0)
-    sentry-rails (5.19.0)
+    sentry-rails (5.20.1)
       railties (>= 5.0)
-      sentry-ruby (~> 5.19.0)
-    sentry-ruby (5.19.0)
+      sentry-ruby (~> 5.20.1)
+    sentry-ruby (5.20.1)
       bigdecimal
       concurrent-ruby (~> 1.0, >= 1.0.2)
     shoulda-context (2.0.0)