chore: Update deno.unstable to an array (#11032)

chore: update `deno.unstable`

Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

.vscode/settings.json

@@ -52,6 +52,6 @@
 	"deno.enable": false,
 	"deno.enablePaths": ["./packages/create-discord-bot/template/Deno"],
 	"deno.lint": false,
-	"deno.unstable": false,
+	"deno.unstable": [],
 	"deno.config": "./packages/create-discord-bot/template/Deno/deno.jsonc"
 }