Add 8.4 to testing matrix (#18)

.circleci/config.yml

@@ -176,5 +176,5 @@ workflows:
             - matrix-conditions:
                   matrix:
                       parameters:
-                          version: ["7.4", "8.0", "8.1", "8.2", "8.3"]
+                          version: ["7.4", "8.0", "8.1", "8.2", "8.3", "8.4"]
                           install-flags: ["", "--prefer-lowest"]

composer.json

@@ -14,10 +14,10 @@
         "ext-json": "*"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.6",
+        "phpunit/phpunit": "^9.6.22",
         "rector/rector": "^0.15.17",
         "squizlabs/php_codesniffer": "^3.7",
-        "symfony/phpunit-bridge": "^7.0"
+        "symfony/phpunit-bridge": "^7.2"
     },
     "autoload": {
         "psr-4": {

src/Mock/Storage/JsonObjectMemory.php

@@ -31,7 +31,7 @@ public function retrieveAll(): array
         return  $results;
     }
 
-    public function store($data, string $id = null): string
+    public function store($data, ?string $id = null): string
     {
         $this->validate($data);
         return parent::store($data, $id);

src/Mock/Storage/Memory.php

@@ -24,7 +24,7 @@ public function retrieveAll(): array
         return $this->storage;
     }
 
-    public function store($data, string $id = null): string
+    public function store($data, ?string $id = null): string
     {
         if (!isset($id)) {
             throw new \Exception("An id is required to store the data.");

src/StorerInterface.php

@@ -19,5 +19,5 @@ interface StorerInterface
      * @throws \Exception
      *   Issues storing the data.
      */
-    public function store($data, string $id = null): string;
+    public function store($data, ?string $id = null): string;
 }