Update docker/build-push-action action to v7

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
docker/build-push-action	action	major	v6 → v7

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Release Notes

docker/build-push-action (docker/build-push-action)

v7

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

Overview

This PR updates the docker/build-push-action GitHub Action from v6 to v7. The change is straightforward and maintains compatibility with the existing workflow configuration.

Analysis:

• ✅ Single line change updating action version
• ✅ All existing parameters (push, platforms, context, file, tags) are standard and should be compatible with v7
• ✅ No breaking changes detected in the workflow configuration
• ✅ Renovate bot has validated this update

Files Reviewed (1 file)

• .github/workflows/webapp-dev.yml - Dependency version update