minor #40586 [Config][FrameworkBundle] Hint to use PHP 8+ or to install Annotations for using attributes/annots (dunglas)

This PR was merged into the 5.2 branch.

Discussion
----------

[Config][FrameworkBundle] Hint to use PHP 8+ or to install Annotations for using attributes/annots

…s to use attributes/annots

| Q             | A
| ------------- | ---
| Branch?       | 5.2
| Bug fix?      | no
| New feature?  | no <!-- please update src/**/CHANGELOG.md files -->
| Deprecations? | no <!-- please update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Tickets       | See symfony/recipes#916
| License       | MIT
| Doc PR        | n/a

Improve the error message to hint that you can upgrade to PHP 8 instead of using `doctrine/annotations`.

Commits
-------

af6f3c2c08 [Config][FrameworkBundle] Hint to use PHP 8+ or to install Annotations to use attributes/annots

Author: chalasr

DependencyInjection/FrameworkExtension.php

@@ -1319,7 +1319,7 @@ private function registerValidationConfiguration(array $config, ContainerBuilder
 
         if (\array_key_exists('enable_annotations', $config) && $config['enable_annotations']) {
             if (!$this->annotationsConfigEnabled && \PHP_VERSION_ID < 80000) {
-                throw new \LogicException('"enable_annotations" on the validator cannot be set as Doctrine Annotations support is disabled.');
+                throw new \LogicException('"enable_annotations" on the validator cannot be set as the PHP version is lower than 8 and Doctrine Annotations support is disabled. Consider upgrading PHP.');
             }
 
             $validatorBuilder->addMethodCall('enableAnnotationMapping', [true]);
@@ -1583,7 +1583,7 @@ private function registerSerializerConfiguration(array $config, ContainerBuilder
         $serializerLoaders = [];
         if (isset($config['enable_annotations']) && $config['enable_annotations']) {
             if (\PHP_VERSION_ID < 80000 && !$this->annotationsConfigEnabled) {
-                throw new \LogicException('"enable_annotations" on the serializer cannot be set as Annotations support is disabled.');
+                throw new \LogicException('"enable_annotations" on the serializer cannot be set as the PHP version is lower than 8 and Annotations support is disabled. Consider upgrading PHP.');
             }
 
             $annotationLoader = new Definition(