[GH] (texera/chore/6273-platform-integration): Workflow run "Required Checks" is working again!

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The GitHub Actions job "Required Checks" on texera.git/chore/6273-platform-integration has succeeded.
Run started by GitHub user mengw15 (triggered by mengw15).

Head commit for run:
b197f29fddc0a51b9c34596e2e5f64f43f9e6126 / mengw15 <12...@users.noreply.github.com>
ci: make platform-integration an independent per-service boot check

Restructure the platform-integration job to mirror amber-integration:
run it as an independent, per-service matrix that builds each service's
dist on its own classpath and boots it against real infra, instead of
depending on the platform job via CI artifacts.

- Drop the upload/download-artifact hand-off and `needs: platform` so
  platform and platform-integration run in parallel.
- Split platform-integration into a per-service matrix (like platform),
  one boot check per service.
- Provision MinIO + LakeFS only for file-service (matrix.object_store);
  postgres backs every service's JOOQ codegen and boot.
- Add a dedicated run_platform_integration trigger mirroring
  run_amber_integration (LABEL_STACKS + decide output + both build.yml
  callers), including a dedicated `platform-integration` label so a
  spec-only change can fire it without the full platform job -- a proper
  superset of platform's trigger, as amber-integration is of amber's.
- smoke-boot.sh: drop the shallow/strict mode argument now that every
  service boots against real infra, and stop passing the stale `strict`
  arg from the caller.

Report URL: https://github.com/apache/texera/actions/runs/29043253003

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