Bump cssbundling-rails from 1.3.3 to 1.4.0

Bumps [cssbundling-rails](https://github.com/rails/cssbundling-rails) from 1.3.3 to 1.4.0.
- [Release notes](https://github.com/rails/cssbundling-rails/releases)
- [Commits](rails/cssbundling-rails@v1.3.3...v1.4.0)

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

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

Gemfile

@@ -10,7 +10,7 @@ gem "puma", "~> 6.4"              # Use the Puma web server [https://github.com/
 gem "rails", "~> 7.1.3"
 
 # Frontend asset bundling
-gem "cssbundling-rails", "~> 1.1"
+gem "cssbundling-rails", "~> 1.4"
 gem "jbuilder"                    # Build JSON APIs with ease [https://github.com/rails/jbuilder]
 gem "jsbundling-rails", "~> 1.3"
 gem "stimulus-rails"              # Hotwire's modest JavaScript framework [https://stimulus.hotwired.dev]

Gemfile.lock

@@ -134,7 +134,7 @@ GEM
     country_select (8.0.3)
       countries (~> 5.0)
     crass (1.0.6)
-    cssbundling-rails (1.3.3)
+    cssbundling-rails (1.4.0)
       railties (>= 6.0.0)
     date (3.3.4)
     debug (1.9.1)
@@ -160,8 +160,7 @@ GEM
     dotenv-rails (2.8.1)
       dotenv (= 2.8.1)
       railties (>= 3.2)
-    drb (2.2.0)
-      ruby2_keywords
+    drb (2.2.1)
     erubi (1.12.0)
     execjs (2.9.1)
     factory_bot (6.4.5)
@@ -404,7 +403,6 @@ GEM
     ruby-progressbar (1.13.0)
     ruby-vips (2.1.4)
       ffi (~> 1.12)
-    ruby2_keywords (0.0.5)
     rubyzip (2.3.2)
     sassc (2.4.0)
       ffi (~> 1.9)
@@ -491,7 +489,7 @@ DEPENDENCIES
   bugsnag (~> 6.26)
   capybara
   country_select (~> 8.0.3)
-  cssbundling-rails (~> 1.1)
+  cssbundling-rails (~> 1.4)
   debug
   devise (~> 4.9)
   devise-i18n (~> 1.12)