release: publish more os/arch binaries in github release

[joelanford]

Description of the change:

• Removes the release.yaml github action that built and published linux/windows/darwin amd64 binaries to github release.
• Added goreleaser configurations for windows and darwin builds.
• Added a new darwin/arm64 target to support Apple Silicon.
• Linux binaries in the github release are now identical to linux binaries in the published container images.
• Added checksum.txt to the release assets, containing sha265 of each binary.

Motivation for the change:
Closes #526
Supersedes #913 and #631
Follows up on #710

NOTE: Still need to add binary signing requested in #232

Example release produced by this action in my fork: https://github.com/joelanford/operator-registry/releases/tag/v1.19.6

Reviewer Checklist

• Implementation matches the proposed design, or proposal is updated to match implementation
• Sufficient unit test coverage
• Sufficient end-to-end test coverage
• Docs updated or added to /docs
• Commit messages sensible and descriptive

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: joelanford

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [joelanford]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[codecov]

Codecov Report

Merging #914 (7ccd299) into master (00dbb12) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #914   +/-   ##
=======================================
  Coverage   52.18%   52.18%           
=======================================
  Files         103      103           
  Lines        9113     9113           
=======================================
  Hits         4756     4756           
  Misses       3451     3451           
  Partials      906      906           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 00dbb12...7ccd299. Read the comment docs.

[kevinrizza]

/lgtm