Bump Ruby to 4.0 and update gems

Author: thibaudgg

.ruby-version

@@ -1 +1 @@
-3.4.7
+4.0.0

Gemfile.lock

@@ -25,14 +25,14 @@ GEM
     addressable (2.8.8)
       public_suffix (>= 2.0.2, < 8.0)
     base64 (0.3.0)
-    bigdecimal (3.3.1)
+    bigdecimal (4.0.1)
     coffee-script (2.4.1)
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.3.5)
+    concurrent-ruby (1.3.6)
     connection_pool (3.0.2)
-    contracts (0.17.2)
+    contracts (0.17.3)
     docile (1.4.1)
     dotenv (3.2.0)
     drb (2.2.3)
@@ -46,19 +46,20 @@ GEM
     fastimage (2.4.0)
     favicon_maker (1.3.1)
       docile (~> 1.1)
-    ffi (1.17.2)
-    haml (7.0.2)
+    ffi (1.17.3)
+    haml (7.1.0)
       temple (>= 0.8.2)
       thor
       tilt
     hamster (3.0.0)
       concurrent-ruby (~> 1.0)
-    hashie (5.0.0)
+    hashie (5.1.0)
+      logger
     htmlcompressor (0.2.0)
-    http_parser.rb (0.8.0)
-    i18n (1.14.7)
+    http_parser.rb (0.8.1)
+    i18n (1.14.8)
       concurrent-ruby (~> 1.0)
-    json (2.17.1)
+    json (2.18.0)
     kramdown (2.5.1)
       rexml (>= 3.3.9)
     listen (3.9.0)
@@ -118,8 +119,9 @@ GEM
       middleman-cli (~> 4.0)
       middleman-core (~> 4.0)
     mini_portile2 (2.8.9)
-    minitest (5.26.2)
-    nokogiri (1.18.10)
+    minitest (6.0.1)
+      prism (~> 1.5)
+    nokogiri (1.19.0)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     padrino-helpers (0.15.3)
@@ -129,7 +131,8 @@ GEM
     padrino-support (0.15.3)
     parallel (1.27.0)
     parslet (2.0.0)
-    public_suffix (7.0.0)
+    prism (1.7.0)
+    public_suffix (7.0.2)
     racc (1.8.1)
     rack (3.2.4)
     rack-livereload (0.3.17)