Update nextjs monorepo to v15.1.0 #7118

Job	Run time
Lint / ESLint	33s
Build / Node.js 20	2m 0s
Renovate / Validate config	32s
Build / Node.js 22	2m 0s
Test / Unit	20s
Docker (amd64) / Build: web	3m 10s
Docker (amd64) / Build: worker	49s
Docker (amd64) / Build: legacy-importer	31s
Docker (amd64) / Build: database-migration	54s
Docker (amd64) / Build: e2e	57s
Docker (arm64) / Build: web	14m 21s
Docker (arm64) / Build: worker	55s
Docker (arm64) / Build: legacy-importer	1m 4s
Docker (arm64) / Build: database-migration	22s
Docker (arm64) / Build: e2e	40s
Docker (amd64) / Test: kubernetes	3m 8s
Docker (amd64) / Test: e2e	1m 22s
Docker (amd64) / Test: docker compose	1m 20s
Docker (arm64) / Test: e2e	0s
Docker (arm64) / Test: docker compose	0s
Docker (arm64) / Test: kubernetes	0s
Success	1s
Publish (npm) / ui	16s
Publish (docker) / web	43s
Publish (docker) / worker	12s
Publish (npm) / icons	25s
Publish (docker) / legacy-importer	13s
Publish (npm) / helper	23s
Publish (docker) / database-migration	12s
Publish (npm) / tsconfig	15s
Publish (npm) / publish-package	15s
Publish (npm) / eslint-config	16s
Publish (npm) / eslint-plugin-nextjs	16s
	38m 25s

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