Bump docker/build-push-action from 2.7.0 to 2.8.0

Created by: dependabot[bot]

Bumps docker/build-push-action from 2.7.0 to 2.8.0.

Release notes

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

v2.8.0

• Allow specifying subdirectory with default git context (#531)
• Add cgroup-parent, shm-size, ulimit inputs (#501)
• Don't set outputs if empty or nil (#470)
• docs: example to sanitize tags with metadata-action (#476)
• docs: wrong syntax to sanitize repo slug (#475)
• docs: test before pushing your image (#455)
• readme: remove v1 section (#500)
• ci: virtual env file system info (#510)
• dev: update workflow (#499)
• Bump @​actions/core from 1.5.0 to 1.6.0 (#160)
• Bump ansi-regex from 5.0.0 to 5.0.1 (#469)
• Bump tmpl from 1.0.4 to 1.0.5 (#465)
• Bump csv-parse from 4.16.0 to 4.16.3 (#451 #459)

Commits

• 1814d3d Merge pull request #531 from BeyondEvil/subdir-with-default-context
• fc5a732 Add subdirectory for Git context
• b1aeb11 Merge pull request #510 from crazy-max/venv
• e31f93a ci: virtual env file system info
• 9ed5823 Merge pull request #501 from crazy-max/new-inputs
• 4222161 Merge pull request #500 from crazy-max/readme
• 67ff4df add cgroup-parent, shm-size, ulimit inputs
• 91274a0 sort flags
• ff32939 readme: remove v1 section
• 04841f2 Merge pull request #499 from crazy-max/update-workflow
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)