Update docker/login-action action to v4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
docker/login-action	action	major	v3 → v4

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Release Notes

docker/login-action (docker/login-action)

v4

Compare Source

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• If you want to rebase/retry this PR, check this box

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[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (1 file)

• .github/workflows/webapp-dev.yml - Dependency update from docker/login-action@v3 to v4

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This PR updates the docker/login-action from v3 to v4. The change is straightforward and maintains the same configuration parameters. No breaking changes or issues detected.