chore(deps): bump useblacksmith/build-push-action from 1 to 2

[dependabot]

Bumps useblacksmith/build-push-action from 1 to 2.

Release notes

Sourced from useblacksmith/build-push-action's releases.

v2 - Breaking Change: Requires setup-docker-builder

⚠️ BREAKING CHANGE

This is a major breaking change from v1. The build-push-action now requires the use of useblacksmith/setup-docker-builder@v1 action before it can be used.

What's Changed

• Removed: All buildkit setup and stickydisk management functionality has been removed from this action
• Removed: The action no longer handles buildkit lifecycle management (setup/teardown)
• New Requirement: You MUST use useblacksmith/setup-docker-builder@v1 before using this action

Migration Guide

Before (v1):

- name: Build and push
  uses: useblacksmith/build-push-action@v1
  with:
    push: true
    tags: user/app:latest

After (v2):

- name: Setup Docker Builder
  uses: useblacksmith/setup-docker-builder@v1

name: Build and push
uses: useblacksmith/build-push-action@v2
with:
push: true
tags: user/app:latest

Why This Change?

The separation of concerns provides better modularity:

• setup-docker-builder handles all buildkit and stickydisk management
• build-push-action focuses solely on Docker builds and metrics reporting

What This Action Now Does

• Runs Docker builds against the Blacksmith builder (set up by setup-docker-builder)
• Reports Docker metrics to the Blacksmith control plane
• All other Docker build functionality remains the same

⚠️ Attempting to use v2 without first running setup-docker-builder will result in build failures.

v1.2

What's Changed

... (truncated)

Commits

• 30c7116 Merge pull request #131 from useblacksmith/pr-130-fixed
• f5c1cdd chore: update buf dependency and rebuild dist files for CI compatibility
• 4008f74 fix: resolve eStargz version check bug and add test coverage
• 527d67c feat: add eStargz compression support for faster image pulls (#1)
• 4af38cd Merge pull request #128 from useblacksmith/fix/export-timeout
• e6eefa1 fix: add timeout to buildx export operation to prevent hanging
• c213746 Merge pull request #127 from useblacksmith/refactor/remove-buildkit-management
• 6eb4580 chore: comment out bump tags workflow to prevent breaking changes
• 7bff203 fix: remove unnecessary @​ts-expect-error directive
• 805af4f fix: resolve variable scope issues causing CI failures
• Additional commits viewable in compare view

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