CI: update actions in release workflow

[dentarg]

See warnings at https://github.com/cloudamqp/terraform-provider-cloudamqp/actions/runs/3311984617

Links to https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

This code:

terraform-provider-cloudamqp/.github/workflows/release.yml

Lines 27 to 32 in bf5abe6

	-
	name: Read go version
	id: go-version
	run: |
	content=`cat ./.go-version`
	echo "::set-output name=content::$content"

[dentarg]

Oh I think we can solve this (and the other warnings about Node.js 12) by using newer actions/setup-go, v3.1.0 added go-version-file input: https://github.com/actions/setup-go/releases/tag/v3.1.0

More at https://github.com/actions/setup-go/releases

[dentarg]

Should update goreleaser/goreleaser-action to v3 too: https://github.com/goreleaser/goreleaser-action/releases

And use v5 and not v5.0.0 of crazy-max/ghaction-import-gpg, so we get to use these releases automatically https://github.com/crazy-max/ghaction-import-gpg/releases