apkbuild-cpan: fixed error "Experimental keys on scalar is now forbidden" due...

apkbuild-cpan: fixed error "Experimental keys on scalar is now forbidden" due to perl upgrade to 5.24 version

apkbuild-cpan.in

@@ -138,7 +138,7 @@ sub parse_deps {
 	}
 
 	# map package names to alpine packages
-	foreach ( keys $distfiles ) {
+	foreach ( keys %{ $distfiles } ) {
 		$response = $ua->get("http://search.cpan.org/api/dist/$_");
 		$response->is_success or die $response->status_line;
 		my $distdata = $json->decode($response->decoded_content);