fix(examples): remove version attribute post deprecation

[JamBalaya56562]

What?

Remove version attribute post deprecation from the all docker compose files.

Why?

For the latest docker compose (i.e docker compose v2), the version attribute has been deprecated.
This is currently a warning when you do docker compose up but in the future would become a requirement.
Version and name top-level elements mention that the version has become obsolete for the latest docker compose.

How?

Remove the version field in the compose files to stop the warning that one may get during docker builds.

Adding or Updating Examples

• The "examples guidelines" are followed from our contributing doc https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md
• Make sure the linting passes by running pnpm build && pnpm lint. See https://github.com/vercel/next.js/blob/canary/contributing/repository/linting.md

Similar PR: #68503

[ijjk]

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