feat(tokens): added gap utility-classes (#30063)

Issue number: internal

---------

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## What is the new behavior?
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this PR. -->

- Added generation of gao utility-classes on the context of the padding
and margin ones.

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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core/scripts/tokens/utils.js

@@ -231,7 +231,14 @@ function generateSpaceUtilityClasses(prop, className) {
 };
 `;
 
-  return `${marginPaddingTemplate('margin')}\n${marginPaddingTemplate('padding')}`;
+  // Add gap utility classes for gap tokens
+  const generateGapUtilityClasses = () =>`
+.${variablesPrefix}-gap-${prop.name} { 
+  gap: #{$${variablesPrefix}-${prop.name}}; 
+};
+`;
+
+  return `${generateGapUtilityClasses()}\n${marginPaddingTemplate('margin')}\n${marginPaddingTemplate('padding')}`;
 }
 
 // Generates a valid box-shadow value from a shadow Design Token structure