Large number of Vercel Edge Middleware Invocations coming from next-auth's `/api/auth/session`

import { PrismaAdapter } from '@next-auth/prisma-adapter';
import { type User } from '@prisma/client';
import { type GetServerSidePropsContext } from 'next';
import { getServerSession, type DefaultSession, type NextAuthOptions } from 'next-auth';
import GoogleProvider from 'next-auth/providers/google';
import { env } from '../env.mjs';
import db from './db';

declare module 'next-auth' {
  interface Session extends DefaultSession {
    user: DefaultSession['user'] & User;
  }
}

export const authOptions: NextAuthOptions = {
  adapter: PrismaAdapter(db),
  providers: [
    GoogleProvider({
      clientId: env.AUTH_GOOGLE_ID,
      clientSecret: env.AUTH_GOOGLE_SECRET,
    }),
  ],
  callbacks: {
    session: (s) => {
      return { ...s.session, user: { ...s.session.user, ...s.user } };
    },
  },
  events: {
    linkAccount: async ({ user }) => {
      await db.user.update({
        where: { id: user.id },
        data: { emailVerified: new Date() },
      });
    },
  },
  pages: {
    signIn: '/auth/login',
    error: '/auth/error',
    newUser: '/auth/register',
  },
};

export const getServerAuthSession = (ctx: { req: GetServerSidePropsContext['req']; res: GetServerSidePropsContext['res'] }) => {
  return getServerSession(ctx.req, ctx.res, authOptions);
};

export const createTRPCContext = async ({ req, res }: CreateNextContextOptions) => {
  const session = await getServerAuthSession({ req, res });

  return createInnerTRPCContext({ session });
};