feat(auth): add GitHub provider for authentication

src/auth.ts

@@ -1,8 +1,9 @@
 import NextAuth from "next-auth";
 import { prisma } from "@/lib/prisma";
+import GitHub from "next-auth/providers/github";
 import { PrismaAdapter } from "@auth/prisma-adapter";
 
 export const { handlers, auth, signIn, signOut } = NextAuth({
   adapter: PrismaAdapter(prisma),
-  providers: [],
+  providers: [GitHub],
 });