Add JSON support for the file extension escaping strategy

CHANGELOG

@@ -1,5 +1,6 @@
 # 3.15.0 (2024-XX-XX)
 
+ * Add JSON support for the file extension escaping strategy
  * Support Markup instances (and any other \Stringable) as dynamic mapping keys
  * Deprecate the `sandbox` tag
  * Improve the way one can deprecate a Twig callable (use `deprecation_info` instead of the other callable options)

src/FileExtensionEscapingStrategy.php

@@ -45,6 +45,7 @@ class FileExtensionEscapingStrategy
 
         switch ($extension) {
             case 'js':
+            case 'json':
                 return 'js';
 
             case 'css':