fix(deps): update nextjs monorepo to v15 (major) #29462

Job	Run time
projects-matrix	17s
test (orm/typedsql)	34s
test (orm/testing-express)	44s
test (orm/sveltekit)	1m 2s
test (orm/starter)	33s
test (orm/script)	34s
test (orm/remix)	1m 22s
test (orm/postgis-express)	43s
test (orm/nuxt-prisma-module)	25s
test (orm/nuxt)	1m 25s
test (orm/nextjs-trpc)	1m 5s
test (orm/nextjs-graphql)	1m 8s
test (orm/nextjs-api-routes-auth)	1m 10s
test (orm/nextjs-api-routes)	1m 5s
test (orm/nest-graphql-sdl-first)	1m 42s
test (orm/nest-graphql)	1m 27s
test (orm/nest)	1m 28s
test (orm/koa)	1m 15s
test (orm/hapi-graphql-sdl-first)	1m 7s
test (orm/hapi-graphql)	1m 13s
test (orm/hapi)	1m 6s
test (orm/grpc)	3m 35s
test (orm/graphql-typegraphql-crud)	1m 20s
test (orm/graphql-typegraphql)	1m 9s
test (orm/graphql-subscriptions)	55s
test (orm/graphql-sdl-first)	1m 2s
test (orm/graphql-nexus)	1m 9s
test (orm/graphql-auth)	1m 0s
test (orm/graphql)	1m 6s
test (orm/fastify-graphql-sdl-first)	1m 11s
test (orm/fastify-graphql)	1m 6s
test (orm/fastify)	1m 3s
test (orm/express)	1m 2s
test (databases/sql-server)	24s
test (databases/prisma-postgres)	26s
test (databases/postgresql-supabase)	26s
test (databases/mongodb)	25s
test (databases/cockroachdb)	24s
	39m 8s

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