[PDFR-43276]: update release workflow

[ijames-gc]

Problem

The current release workflow is failing with

⨯ release failed after 51s                 error=homebrew tap formula: failed to publish artifacts: PUT https://api.github.com/repos/gocardless/homebrew-taps/contents/Formula/draupnir.rb: 403 Resource not accessible by integration []
Error: Process completed with exit code 1.

indicating the default Github token doesn't have access to push to our homebrew repo. The Draupnir formula hasn't been updated in 2 years.

Fix

Update the release workflow to use the goreleaser action and updated secrets. Followed the setup we have in the Utopia repo: https://github.com/gocardless/utopia/blob/main/.github/workflows/main.yml#L62-L101C1.