chore(gatsby): Fix index.d.ts file (gatsbyjs#33805)

Author: LekoArts

packages/gatsby/index.d.ts

@@ -30,7 +30,7 @@ export const useScrollRestoration: (key: string) => {
   onScroll(): void
 }
 
-class StaticQueryDocument {
+export class StaticQueryDocument {
   /** Prevents structural type widening. */
   #kind: "StaticQueryDocument"
 

scripts/check-ts.js

@@ -36,10 +36,6 @@ let packagesWithTs = packages
         ignore: `**/node_modules/**`,
       }).length
   )
-  // TEMPORARILY NOT CHECKING GATSBY-ADMIN
-  // Gatsby admin is filled with type bugs, and i'm not sure the best way to solve it
-  // because they are coming from theme-ui.
-  .filter(path => !path.includes(`gatsby-admin`))
 
 if (filterPackage) {
   packagesWithTs = packagesWithTs.filter(project =>