Upgrade PHP version to 8.3 and set JWSSerializer override flag

This commit updates the PHP version in our GitHub workflows from 8.2 to 8.3. Now, all our build and test jobs will use the newer version. An override flag was also added to the getSupportedTypes method in the JWSSerializer, making our intention clearer when using this method. These updates will ensure that our code continues to be compatible with ongoing upgrades.

.github/workflows/integrate.yml

@@ -29,7 +29,7 @@ jobs:
       - name: "Set up PHP"
         uses: "shivammathur/setup-php@v2"
         with:
-          php-version: "8.2"
+          php-version: "8.3"
           extensions: "json, mbstring, openssl, sqlite3, curl, uuid"
           tools: castor
 
@@ -105,7 +105,7 @@ jobs:
       - name: "Set up PHP"
         uses: "shivammathur/setup-php@v2"
         with:
-          php-version: "8.2"
+          php-version: "8.3"
           extensions: "json, mbstring, openssl, sqlite3, curl, uuid"
           tools: castor
 
@@ -115,7 +115,7 @@ jobs:
       - name: "Install dependencies"
         uses: "ramsey/composer-install@v3"
         with:
-          dependency-versions: "lowest"
+          dependency-versions: "highest"
           composer-options: "--optimize-autoloader"
 
       - name: "Execute static analysis"
@@ -131,7 +131,7 @@ jobs:
       - name: "Set up PHP"
         uses: "shivammathur/setup-php@v2"
         with:
-          php-version: "8.2"
+          php-version: "8.3"
           extensions: "json, mbstring, openssl, sqlite3, curl, uuid"
           tools: castor
 
@@ -141,7 +141,7 @@ jobs:
       - name: "Install dependencies"
         uses: "ramsey/composer-install@v3"
         with:
-          dependency-versions: "lowest"
+          dependency-versions: "highest"
           composer-options: "--optimize-autoloader"
 
       - name: "Check adherence to EditorConfig"
@@ -160,7 +160,7 @@ jobs:
       - name: "Set up PHP"
         uses: "shivammathur/setup-php@v2"
         with:
-          php-version: "8.2"
+          php-version: "8.3"
           extensions: "json, mbstring, openssl, sqlite3, curl, uuid"
           tools: castor
 
@@ -170,7 +170,7 @@ jobs:
       - name: "Install dependencies"
         uses: "ramsey/composer-install@v3"
         with:
-          dependency-versions: "lowest"
+          dependency-versions: "highest"
           composer-options: "--optimize-autoloader"
 
       - name: "Check coding style"
@@ -186,7 +186,7 @@ jobs:
       - name: "Set up PHP"
         uses: "shivammathur/setup-php@v2"
         with:
-          php-version: "8.2"
+          php-version: "8.3"
           extensions: "json, mbstring, openssl, sqlite3, curl, uuid"
           tools: castor
           coverage: "xdebug"

src/Bundle/Serializer/JWSSerializer.php

@@ -26,6 +26,7 @@ public function __construct(
         $this->serializerManager = $serializerManager;
     }
 
+    #[Override]
     public function getSupportedTypes(?string $format): array
     {
         return [