bug #3 Allow Symfony 6 in require-dev (sstok)

This PR was squashed before being merged into the main branch.

Discussion
----------

| Q             | A
| ------------- | ---
| Branch?       | main
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Fixed tickets | Fix #2 instead -->
| License       | MIT


Commits
-------

d01d954 Allow Symfony 6 in require-dev
b1eb80c Fix CI workflow
0e7413d Fix PHP 8 deprecation warnings

.github/workflows/ci.yaml

@@ -54,6 +54,8 @@ jobs:
                     git config --global user.email [email protected]
 
                     rm -f composer.lock
+                    composer global config --no-plugins allow-plugins.symfony/flex true
+                    composer config --no-plugins allow-plugins.symfony/flex true
                     composer global require symfony/flex
                     composer install --no-progress --no-interaction --no-suggest --optimize-autoloader --ansi
 
@@ -86,6 +88,8 @@ jobs:
                 name: Install Composer dependencies
                 run: |
                     rm -f composer.lock
+                    composer global config --no-plugins allow-plugins.symfony/flex true
+                    composer config --no-plugins allow-plugins.symfony/flex true
                     composer global require symfony/flex
                     composer install --no-progress --no-interaction --no-suggest --optimize-autoloader --ansi
 

composer.json

@@ -25,7 +25,7 @@
         "phpstan/phpstan": "^0.12.99",
         "phpstan/phpstan-phpunit": "^0.12.22",
         "phpunit/phpunit": "^9.5",
-        "symfony/framework-bundle": "^5.3",
+        "symfony/framework-bundle": "^5.3 || ^6.0",
         "symfony/phpunit-bridge": "^5.3 || ^6.0"
     },
     "autoload": {

tests/Constraints/NotInPasswordCommonListTest.php

@@ -39,7 +39,7 @@ public function it_ignores_empty_values(): void
 
         $this->validator->validate(
             new class() implements Stringable {
-                public function __toString()
+                public function __toString(): string
                 {
                     return '';
                 }
@@ -87,7 +87,7 @@ public function __construct(string $password)
                 $this->password = $password;
             }
 
-            public function __toString()
+            public function __toString(): string
             {
                 return $this->password;
             }