Bump next from 14.2.10 to 14.2.15 in /test/nextjs/app #130

Job	Run time
Validation	7s
JavaScript linter (Prettier)	42s
Node.js 22 - Build	57s
Node.js 18 - Build	43s
Node.js 20 - Build	44s
Integration tests (Express + Redis)	2m 53s
Git linter (Lintje)	10s
Integration tests (Express + Knex.js)	2m 28s
Ruby linter (RuboCop)	6s
Integration tests (Koa + MySQL)	3m 3s
Integration tests (Koa + Mongo)	2m 14s
Integration tests (Express + Mongoose)	2m 21s
Integration tests (Express + Postgres)	2m 9s
Integration tests (Express + Apollo)	2m 8s
Integration tests (Express + Yoga)	2m 6s
Integration tests (Express + Prisma + Postgres)	2m 53s
Integration tests (Express + Prisma + Mongo)	2m 52s
Integration tests (Next.js)	2m 2s
Integration tests (Nest.js)	2m 29s
Integration tests (Fastify)	2m 20s
Node.js 18 - Extra test - diagnose	2m 45s
Node.js 18 - Tests	1m 7s
Node.js 20 - Extra test - diagnose	2m 46s
Node.js 20 - Tests	51s
Node.js 22 - Extra test - diagnose	2m 44s
Node.js 22 - Tests	59s
Node.js 18 - Clean up	0s
Node.js 20 - Clean up	0s
Node.js 22 - Clean up	0s
	46m 39s

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