skopeo: update to 1.4.0.

srcpkgs/skopeo/template

@@ -1,6 +1,6 @@
 # Template file for 'skopeo'
 pkgname=skopeo
-version=1.3.1
+version=1.4.0
 revision=1
 build_style=go
 go_import_path="github.com/containers/${pkgname}"
@@ -14,7 +14,7 @@ maintainer="Cameron Nemo <cnemo@tutanota.com>"
 license="Apache-2.0"
 homepage="https://github.com/containers/skopeo"
 distfiles="https://github.com/containers/${pkgname}/archive/v${version}.tar.gz"
-checksum=5d699bc0f50a7af6f8eb5222cd7f88f8c3b36d951425de74244eae98568f06ae
+checksum=f5f9d0e2d3dfdc9f1897ae3c3289d7a066150747bbb7c8f71ac5f76165b62bfb
 make_dirs="/var/lib/atomic/sigstore 0755 root root"
 
 post_build() {