Fixup goreleaser config

[svix-onelson]

Looks like our config was outdated, and workflow used deprecated flags. These seem to have prevented the v0.20.0 release from happening.

Refs:

• https://github.com/svix/svix-cli/actions/runs/5756141108/job/15605015680#step:5:19
• Command init includes deprecated archives.replacements in config goreleaser/goreleaser#3625

[svix-onelson]

I fixed up the first round things visible from the attempted release in August, but having just run the check locally, I see some other stuff that's out of whack.

goreleaser check
  • checking                                 path=
  • DEPRECATED:  brews.tap  should not be used anymore, check https://goreleaser.com/deprecations#brewstap for more info
  • DEPRECATED:  scoop  should not be used anymore, check https://goreleaser.com/deprecations#scoop for more info
  • DEPRECATED:  scoops.bucket  should not be used anymore, check https://goreleaser.com/deprecations#scoopsbucket for more info
  • .goreleaser.yml                                  error=configuration is valid, but uses deprecated properties
  ⨯ command failed                                   error=1 out of 1 configuration file(s) have issues

Will try to work through it.

---

goreleaser check
  • checking                                 path=
  • 1 configuration file(s) validated
  • thanks for using goreleaser!

I get a pass from goreleaser check locally using 1.21.2 (the most recent non-nightly). Looks like all these deprecations kicked in back in July.