docs(docker): fix compose file name and update error message path

[hu-qi]

SUMMARY

This PR updates the Superset Docker documentation to correct the filename from compose-image-tag.yml to docker-compose-image-tag.yml in the startup instructions. It also updates the related error message path for consistency.

These changes ensure users can start Superset using Docker Compose without confusion and avoid outdated filenames.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

Not applicable

TESTING INSTRUCTIONS

1. Check out the tags/4.1.2 release.

2. Run the updated command:

   docker compose -f docker-compose-image-tag.yml up  

3. Confirm that Superset starts correctly and the file reference matches.

4. Optionally, test with an outdated docker-compose to verify the updated error message.

ADDITIONAL INFORMATION

• Has associated issue:

• Required feature flags:

• Changes UI

• Includes DB Migration (follow approval process in [SIP-59]([SIP-59] Proposal for Database migration standards #13351))

  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided

• Introduces new feature or API

• Removes existing feature or API

---

[korbit-ai]

I've completed my review and didn't find any issues.

Files scanned

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File Path	Reviewed
docs/docs/quickstart.mdx	✅

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[github-actions]

Congrats on making your first PR and thank you for contributing to Superset! 🎉 ❤️

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[hainenber]

Hi and thanks for your 1st PR 👏 . This PR is correct but in the near future, when 4.1.3 is released, this PR will be reverted to reflect compose-image-tag.yml's presence.

From this post, I suppose you can make the small clarification note instead.

[hu-qi]

Hi and thanks for your 1st PR 👏 . This PR is correct but in the near future, when 4.1.3 is released, this PR will be reverted to reflect compose-image-tag.yml's presence.嗨，感谢你的第一个 PR 👏。这个 PR 是正确的，但在不久的将来，当 4.1.3 发布时，这个 PR 将被撤销以反映 compose-image-tag.yml 的存在。

From this post, I suppose you can make the small clarification note instead.由此，我猜你可以做一个小小的澄清说明。

Thanks for the feedback from the maintainers and community. Following the suggestions, I'll close this PR for now.

I'll continue to follow this project and look forward to contributing more meaningful improvements in the future. Thanks for your time reviewing this!