switch to a permament link in errors (#7205)

src/Payments/Api.php

@@ -138,7 +138,7 @@ public function verify_payment_methods_dependencies() {
 				if ( ! wp_script_is( $dep, 'registered' ) ) {
 					$error_handle  = $dep . '-dependency-error';
 					$error_message = sprintf(
-						'Payment gateway with handle \'%1$s\' has been deactivated in Cart and Checkout blocks because its dependency \'%2$s\' is not registered. Read the docs about registering assets for payment methods: https://github.com/woocommerce/woocommerce-gutenberg-products-block/blob/trunk/docs/extensibility/payment-method-integration.md#registering-assets',
+						'Payment gateway with handle \'%1$s\' has been deactivated in Cart and Checkout blocks because its dependency \'%2$s\' is not registered. Read the docs about registering assets for payment methods: https://github.com/woocommerce/woocommerce-blocks/blob/060f63c04f0f34f645200b5d4da9212125c49177/docs/third-party-developers/extensibility/checkout-payment-methods/payment-method-integration.md#registering-assets',
 						esc_html( $payment_method_script ),
 						esc_html( $dep )
 					);