Support Symfony 6.4 (#232)

Author: fre5h

.github/workflows/ci.yaml

@@ -1,18 +1,26 @@
 name: CI
 
 on:
+  pull_request:
   push:
     branches:
       - 'main'
-  pull_request:
 
 jobs:
   composer-validate:
     runs-on: ubuntu-latest
     name: "Composer Validate"
     steps:
       - name: 'Checkout Code'
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
+
+      - name: 'Setup PHP'
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: 8.2
+          ini-values: memory_limit=-1
+          coverage: none
+          tools: composer:v2
 
       - name: 'Validate composer.json'
         run: composer validate --no-check-all --strict --no-check-lock
@@ -23,10 +31,18 @@ jobs:
     name: "Composer Install"
     steps:
       - name: 'Checkout Code'
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
+
+      - name: 'Setup PHP'
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: 8.2
+          ini-values: memory_limit=-1
+          coverage: none
+          tools: composer:v2
 
       - name: 'Install Dependencies'
-        run: composer install --prefer-dist --no-progress --no-interaction --no-suggest --optimize-autoloader
+        run: composer install --prefer-dist --no-progress --no-interaction
 
   code-style:
     needs: composer-install
@@ -36,7 +52,7 @@ jobs:
       fail-fast: false
     steps:
       - name: 'Checkout Code'
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: 'Setup PHP'
         uses: shivammathur/setup-php@v2
@@ -61,7 +77,7 @@ jobs:
       fail-fast: false
     steps:
       - name: 'Checkout Code'
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: 'Setup PHP'
         uses: shivammathur/setup-php@v2
@@ -92,9 +108,10 @@ jobs:
           - '6.1'
           - '6.2'
           - '6.3'
+          - '6.4'
     steps:
       - name: 'Checkout Code'
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: 'Setup PHP'
         uses: shivammathur/setup-php@v2
@@ -121,7 +138,7 @@ jobs:
       fail-fast: false
     steps:
       - name: 'Checkout Code'
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: 'Setup PHP'
         uses: shivammathur/setup-php@v2

Form/EnumTypeGuesser.php

@@ -47,8 +47,10 @@ public function __construct(ManagerRegistry $registry, array $registeredTypes)
     }
 
     /**
-     * @param string $class
-     * @param string $property
+     * @template T of object
+     *
+     * @param class-string<T> $class
+     * @param string          $property
      *
      * @throws EnumTypeIsRegisteredButClassDoesNotExistException
      *