Bump rdf-normalize from 0.3.3 to 0.4.0 (#12785)

Bumps [rdf-normalize](https://github.com/gkellogg/rdf-normalize) from 0.3.3 to 0.4.0.
- [Release notes](https://github.com/gkellogg/rdf-normalize/releases)
- [Commits](https://github.com/gkellogg/rdf-normalize/compare/0.3.3...0.4.0)

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

Gemfile

@@ -102,7 +102,7 @@ gem 'webpush'
 
 gem 'json-ld', git: 'https://github.com/ruby-rdf/json-ld.git', ref: 'e742697a0906e74e8bb777ef98137bc3955d981d'
 gem 'json-ld-preloaded', '~> 3.0'
-gem 'rdf-normalize', '~> 0.3'
+gem 'rdf-normalize', '~> 0.4'
 
 group :development, :test do
   gem 'fabrication', '~> 2.21'

Gemfile.lock

@@ -504,11 +504,11 @@ GEM
       thor (>= 0.19.0, < 2.0)
     rainbow (3.0.0)
     rake (13.0.1)
-    rdf (3.0.13)
+    rdf (3.1.0)
       hamster (~> 3.0)
       link_header (~> 0.0, >= 0.0.8)
-    rdf-normalize (0.3.3)
+    rdf-normalize (0.4.0)
-      rdf (>= 2.2, < 4.0)
+      rdf (~> 3.1)
     redis (4.1.3)
     redis-actionpack (5.0.2)
       actionpack (>= 4.0, < 6)
@@ -771,7 +771,7 @@ DEPENDENCIES
   rails-controller-testing (~> 1.0)
   rails-i18n (~> 5.1)
   rails-settings-cached (~> 0.6)
-  rdf-normalize (~> 0.3)
+  rdf-normalize (~> 0.4)
   redis (~> 4.1)
   redis-namespace (~> 1.7)
   redis-rails (~> 5.0)