pem method
Implementation
Future<void> pem(Shell shell, Directory certs) async {
const fs = LocalFileSystem();
final cat = await shell.start('cat', arguments: [
'${certs.path}/ca/ca.key',
'${certs.path}/ca/ca.crt',
]);
await cat.stdout.writeToFile(fs.file("${certs.path}/ca/ca.pem"));
await cat.stderr.drain<void>();
}