Update PayPal integration (#372)

* Upgrade PHP CKO SDK to 3.0.20 and update code to use new namespace

* WIP: PayPal Integration updates

* Update PayPal integration with new method

assets/js/cko-google-pay-integration.js

@@ -21,14 +21,20 @@ jQuery( function ( $ ) {
 					if ( jQuery( this ).val() === DOMStrings.paymentMethodName ) {
 						// Google Pay selected.
 						jQuery( '#ckocom_googlePay' ).show();
+                        jQuery( '#paypal-button-container' ).hide();
 
 						jQuery( DOMStrings.placeOrder ).hide()
 						jQuery( '#place_order' ).prop( "disabled", true );
 
 					} else if ( 'wc_checkout_com_apple_pay' === this.value ) {
+                        jQuery( '#paypal-button-container' ).hide();
 						jQuery( '#ckocom_googlePay' ).hide();
 						jQuery( "#place_order" ).hide();
-					} else {
+					} else if ( 'wc_checkout_com_paypal' === this.value ) {
+                        jQuery( '#ckocom_googlePay' ).hide();
+                        jQuery( '#ckocom_applePay' ).hide();
+                        jQuery( "#place_order" ).hide();
+                    } else {
 						jQuery( '#ckocom_googlePay' ).hide();
 
 						jQuery( '#place_order' ).prop( "disabled", false );

composer.json

@@ -9,7 +9,7 @@
     },
     "require": {
         "php": ">=7.3",
-        "checkout/checkout-sdk-php": "3.0.20"
+        "checkout/checkout-sdk-php": "3.0.*"
     },
     "require-dev": {
         "squizlabs/php_codesniffer": "^3.6",