cache bust

i need to make something for this

Author: studioromeo

src/_includes/default.html

@@ -21,7 +21,7 @@
         />
         <link rel="icon" type="image/svg+xml" href="/favicon.svg?v=1" />
 
-        <link rel="stylesheet" href="/assets/css/main.css?v=71025" />
+        <link rel="stylesheet" href="/assets/css/main.css?v=710251" />
         <title>
             {%- if title -%}{{ title }} | {{ site.title }} {%- else -%} {{
             site.title }} | {{ site.description}}{%- endif -%}