message: Fix kubectl secret panic
diff: @@ -791,6 +791,17 @@ impl ClusterInstaller {
  })?;
  debug!("Using TLS from paths: {:?}", paths);
  + // Try uninstalling secrets first to prevent duplication error
  + Command::new("kubectl")
  + .args(&["delete", "secret", "fluvio-ca", "--ignore-not-found=true"])
  + .args(&["--namespace", &self.config.namespace])
  + .inherit();
  +
  + Command::new("kubectl")
  + .args(&["delete", "secret", "fluvio-tls", "--ignore-not-found=true"])
  + .args(&["--namespace", &self.config.namespace])
  + .inherit();
  +
  Command::new("kubectl")
  .args(&["create", "secret", "generic", "fluvio-ca"])
  .args(&["--from-file", ca_cert])
  