goreleaser: snapshot.name_template is deprecated

[abhinav]

Before:

snapshot:
  name_template: 'foo'

After:

snapshot:
  version_template: 'foo'

Ref: https://goreleaser.com/deprecations/#snapshotname_template

[abhinav]

This change is part of the following stack:

• 366 ◀

_{Change managed by git-spice.}