skopeo: 0.1.18 -> 0.1.22 fix certs.d permission error

the dependency docker_client.go tries to read /etc/docker/certs.d/
and fails if this is not readable.

the original code silently ignores this directory if it is not present
so path.patch adds the logic to ignore it in case of a permission error.

pkgs/development/tools/skopeo/path.patch

@@ -22,3 +22,17 @@ index 50e29b2..7108df5 100644
  	if c.GlobalBool("insecure-policy") {
  		policy = &signature.Policy{Default: []signature.PolicyRequirement{signature.NewPRInsecureAcceptAnything()}}
  	} else if policyPath == "" {
+diff --git a/vendor/github.com/containers/image/docker/docker_client.go b/vendor/github.com/containers/image/docker/docker_client.go
+index b989770..697d2ee 100644
+--- a/vendor/github.com/containers/image/docker/docker_client.go
++++ b/vendor/github.com/containers/image/docker/docker_client.go
+@@ -154,6 +154,9 @@ func setupCertificates(dir string, tlsc *tls.Config) error {
+ 		if os.IsNotExist(err) {
+ 			return nil
+ 		}
++		if os.IsPermission(err) {
++			return nil
++		}
+ 		return err
+ 	}
+