Change the Vendor tab label

gistfile1.php

add_filter( 'woocommerce_product_tabs', 'woo_rename_vendor_tab' );
function woo_rename_vendor_tab( $tabs ) {
  if ( isset( $tabs['vendor'] ) ) {
    $tabs['vendor']['title'] = __( 'Your Label Here' );
  }
  
  return $tabs;
}