chore(docs): fix testing-with-prisma diff in tutorial (#1282)

Co-authored-by: Jason Kuhrt <[email protected]>

Author: janpio

website/content/010-getting-started/03-tutorial/07-chapter-6-testing-with-prisma.mdx

@@ -111,7 +111,7 @@ export function createTestContext(): TestContext {
   })
 
   afterAll(async () => {
-    ;+(await ctx.app.db.client.disconnect())
++   await ctx.app.db.client.disconnect()
     await ctx.app.stop()
   })