Update goreleaser action to v6 and set goreleaser binary to v2

[daniel-weisse]

goreleaser recently released version 2 of the tool.
This release deprecates the --rm-dist flag.
Since the version argument of the goreleaser/goreleaser-action of the release.yml workflow was set to latest, the action downloaded the newer version, breaking the workflow.

This PR updates the goreleaser action to v6 and pins the goreleaser binary version to any minor version of v2.
This should save the workflow from running into similar issues if gorelaser ever releases a v3 with other breaking changes.

b2e0fda updates the workflow.yml workflow to use the release.yml from the same commit the workflow was triggered on.
This is required for the checks to pass on this PR, as it updates that very same workflow.
Otherwise it takes the workflow from the last tag on v2.
If this is desired behavior, I can just drop the commit before merging.

[pelletier]

Thank you for taking care of this! The change looks good to me, I will try to release a new version of go-toml sometime this coming week and we'll see how it goes!