refactor: use go build style template

srcpkgs/migrate/template

@@ -4,6 +4,8 @@ version=4.18.1
 revision=1
 build_style=go
 go_import_path="github.com/golang-migrate/migrate/v4"
+go_package="./cmd/migrate"
+go_ldflags="-X main.Version=${version}"
 short_desc="Database migrations CLI written in Golang"
 maintainer="Thomas Treffry <t.treffry@gmail.com>"
 license="MIT"
@@ -11,11 +13,6 @@ homepage="https://github.com/golang-migrate/migrate"
 distfiles="https://github.com/golang-migrate/migrate/archive/refs/tags/v${version}.tar.gz"
 checksum="06cb38c81f0152670c730e906a27f49b353958fe90dcdf9f90f318785c19977f"
 
-do_build() {
-	VERSION="$version" make build
-}
-
-do_install() {
-	vbin migrate
+post_install() {
 	vlicense LICENSE
 }