chore: add override

Use new attribute:
https://www.php.net/manual/class.override.php

Author: Rotzbua

composer.json

@@ -35,6 +35,7 @@
     "ext-openssl": "*",
     "guzzlehttp/guzzle": "^7.9.2",
     "spomky-labs/base64url": "^2.0.4",
+    "symfony/polyfill-php83": "^1.33",
     "web-token/jwt-library": "^3.4.9|^4.0.6"
   },
   "suggest": {

phpstan.neon

@@ -3,6 +3,8 @@ parameters:
     paths:
         - src
     reportUnmatchedIgnoredErrors: false
+    checkMissingOverrideMethodAttribute: true
+    tipsOfTheDay: false
     ignoreErrors:
         - identifier: missingType.iterableValue
     strictRules:

src/MessageSentReport.php

@@ -93,6 +93,7 @@ public function getResponseContent(): ?string
         return $this->response?->getBody()->getContents();
     }
 
+    #[\Override]
     public function jsonSerialize(): array
     {
         return [

src/Subscription.php

@@ -72,33 +72,25 @@ public static function create(array $associativeArray): self
         );
     }
 
-    /**
-     * {@inheritDoc}
-     */
+    #[\Override]
     public function getEndpoint(): string
     {
         return $this->endpoint;
     }
 
-    /**
-     * {@inheritDoc}
-     */
+    #[\Override]
     public function getPublicKey(): ?string
     {
         return $this->publicKey;
     }
 
-    /**
-     * {@inheritDoc}
-     */
+    #[\Override]
     public function getAuthToken(): ?string
     {
         return $this->authToken;
     }
 
-    /**
-     * {@inheritDoc}
-     */
+    #[\Override]
     public function getContentEncoding(): ?string
     {
         return $this->contentEncoding?->value;