build(1733): parse deploy preview env int (#1734)

docs/.vuepress/github/clientDynamicModules.js

@@ -31,11 +31,16 @@ async function getSponsors() {
    * Deploy previews don't have access to secrets.
    * Return early since we don't have a token.
    */
-  if (process.env['DEPLOY_PREVIEW']) {
+  if (
+    process.env['DEPLOY_PREVIEW'] &&
+    parseInt(process.env['DEPLOY_PREVIEW'])
+  ) {
     console.log('Skipping sponsors because this is a deploy preview.')
     return []
   }
 
+  console.log('Fetching sponsors...')
+
   const query = `
     {
       user(login: "sagalbot") {