Bump next from 14.2.21 to 14.2.26 in /references/nextjs-realtime #2629

Job	Run time
typecheck / typecheck	38s
units / 🧪 Unit Tests	38s
e2e / 🧪 CLI v3 tests (ubuntu-latest - npm)	15s
e2e / 🧪 CLI v3 tests (ubuntu-latest - pnpm)	15s
e2e / 🧪 CLI v3 tests (windows-latest - npm)	48s
e2e / 🧪 CLI v3 tests (windows-latest - pnpm)	49s
	3m 23s

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