fix(security): escape attributes in mustache templates

GHSA-jfj7-249r-7j2m

Author: alistair3149

includes/templates/Tabs.mustache

@@ -1,9 +1,9 @@
-<div {{#array-attributes}} {{key}}="{{{value}}}"{{/array-attributes}}>{{!
+<div {{#array-attributes}} {{key}}="{{value}}"{{/array-attributes}}>{{!
 	}}<header class="tabber__header">{{!
 		}}<button class="tabber__header__prev" tabindex="-1" type="button" aria-hidden="true"></button>{{!
 		}}<nav class="tabber__tabs" role="tablist">{{!
 			}}{{#array-tabs}}{{!
-				}}<a class="tabber__tab" role="tab"{{#array-tab-attributes}} {{key}}="{{{value}}}"{{/array-tab-attributes}}>{{{label}}}</a>{{!
+				}}<a class="tabber__tab" role="tab"{{#array-tab-attributes}} {{key}}="{{value}}"{{/array-tab-attributes}}>{{{label}}}</a>{{!
 			}}{{/array-tabs}}{{!
 		}}</nav>{{!
 		}}<button class="tabber__header__next" tabindex="-1" type="button" aria-hidden="true"></button>{{!