change/deno ~ remove unneeded top-level-await (requires Deno v1.30.0+)

- `Deno.permissions.querySync()` added in Deno v1.30.0 (on 2023-01-25)
- see [suggest: Deno.permissions.querySync](denoland/deno#15576)
- see [feat: Add sync APIs for "Deno.permissions"](denoland/deno#17019)
- see [v1.30.0](https://github.com/denoland/deno/releases/tag/v1.30.0) released on 2023-01-25

lib/platform-shims/deno.ts

@@ -22,9 +22,9 @@ const REQUIRE_DIRECTORY_ERROR =
   'loading a directory of commands is not supported yet for ESM';
 
 const DENO_ENV_PERMITTED: boolean =
-  (await Deno.permissions.query({name: 'env'})).state === 'granted';
+  (Deno.permissions.querySync({name: 'env'})).state === 'granted';
 const DENO_READ_CWD_PERMITTED: boolean =
-  (await Deno.permissions.query({name: 'read', path: '.'})).state === 'granted';
+  (Deno.permissions.querySync({name: 'read', path: '.'})).state === 'granted';
 
 // Deno removes argv[0] and argv[1] from Deno.args:
 const argv = ['deno run', ...Deno.args];