Bump docker/build-push-action from 2.6.1 to 2.7.0

Created by: dependabot[bot]

Bumps docker/build-push-action from 2.6.1 to 2.7.0.

Release notes

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

v2.7.0

• Add metadata output (#412)
• Bump @​actions/core from 1.4.0 to 1.5.0 (#439)
• Add note to sanitize tags (#426)
• Cache backend API docs (#406)
• Git context now supports subdir (#407)
• Bump codecov/codecov-action from 1 to 2 (#415)

Commits

• a66e35b Merge pull request #439 from docker/dependabot/npm_and_yarn/actions/core-1.5.0
• 6a98f97 Update generated content
• 26f24d6 Bump @​actions/core from 1.4.0 to 1.5.0
• b0b7751 Merge pull request #412 from crazy-max/metadata-file
• c0b121f Add metadata output
• 09d66c2 Merge pull request #427 from crazy-max/doc-typo
• 24d162e Fix doc typo
• 6484a61 Merge pull request #426 from crazy-max/doc-sanitize-ref
• c40e0ee Add note to sanitize tags
• e06a3af Merge pull request #421 from crazy-max/doc-typo
• Additional commits viewable in compare view

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