Bump govuk_design_system_formbuilder from 5.3.1 to 5.5.0

Bumps [govuk_design_system_formbuilder](https://github.com/x-govuk/govuk-form-builder) from 5.3.1 to 5.5.0.
- [Release notes](https://github.com/x-govuk/govuk-form-builder/releases)
- [Commits](x-govuk/govuk-form-builder@v5.3.1...v5.5.0)

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

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

Gemfile.lock

@@ -112,7 +112,7 @@ GEM
     bindex (0.8.1)
     bootsnap (1.17.1)
       msgpack (~> 1.2)
-    builder (3.2.4)
+    builder (3.3.0)
     byebug (11.1.3)
     capybara (3.40.0)
       addressable
@@ -129,7 +129,7 @@ GEM
       activesupport
       tzinfo
     coderay (1.1.3)
-    concurrent-ruby (1.2.3)
+    concurrent-ruby (1.3.4)
     connection_pool (2.4.1)
     crack (1.0.0)
       bigdecimal
@@ -152,7 +152,7 @@ GEM
       railties (>= 6.1)
     drb (2.2.1)
     e2mmap (0.1.0)
-    erubi (1.12.0)
+    erubi (1.13.0)
     et-orbi (1.2.7)
       tzinfo
     factory_bot (6.4.5)
@@ -210,7 +210,7 @@ GEM
       html-attributes-utils (~> 1.0.0, >= 1.0.0)
       pagy (>= 6, < 9)
       view_component (>= 3.9, < 3.13)
-    govuk_design_system_formbuilder (5.3.1)
+    govuk_design_system_formbuilder (5.5.0)
       actionview (>= 6.1)
       activemodel (>= 6.1)
       activesupport (>= 6.1)
@@ -265,8 +265,8 @@ GEM
     matrix (0.4.2)
     method_source (1.1.0)
     mini_mime (1.1.5)
-    mini_portile2 (2.8.5)
-    minitest (5.23.0)
+    mini_portile2 (2.8.7)
+    minitest (5.24.1)
     msgpack (1.7.2)
     multi_json (1.15.0)
     multi_xml (0.6.0)
@@ -283,7 +283,7 @@ GEM
     net-smtp (0.4.0.1)
       net-protocol
     nio4r (2.7.0)
-    nokogiri (1.16.3)
+    nokogiri (1.16.7)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     oauth2 (2.0.9)
@@ -345,7 +345,7 @@ GEM
     puma (6.4.2)
       nio4r (~> 2.0)
     raabro (1.4.0)
-    racc (1.7.3)
+    racc (1.8.1)
     rack (2.2.9)
     rack-oauth2 (2.2.0)
       activesupport