7.x minor updates (#753)

* Update GitHub test-suite to use Ubuntu-22.04

* Update the LoggerConfiguration `isSkipped` method parameter `$operation` to be explicitly null

Author: jasonhebert

.github/workflows/test-suite.yml

@@ -13,7 +13,7 @@ jobs:
   static-analyze:
     name: "Static Analyze"
 
-    runs-on: "ubuntu-20.04"
+    runs-on: "ubuntu-22.04"
 
     steps:
       - name: "Checkout"
@@ -59,7 +59,7 @@ jobs:
         php-version:
           - "8.2"
         operating-system:
-          - "ubuntu-20.04"
+          - "ubuntu-22.04"
 
     steps:
       - name: "Checkout"

src/AmazonPHP/SellingPartner/Configuration/LoggerConfiguration.php

@@ -124,7 +124,7 @@ public function enableAPIOperation(string $api, string $operation) : self
         return $this;
     }
 
-    public function isSkipped(string $api, string $operation = null) : bool
+    public function isSkipped(string $api, string|null $operation = null) : bool
     {
         if (\in_array($api, $this->skippedAPIs, true)) {
             return true;