minor #146 [Docs] Upgrade to Symfony 6.1 stable (ogizanagi)

This PR was squashed before being merged into the 0.x-dev branch.

Discussion
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[Docs] Upgrade to Symfony 6.1 stable

Commits
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55a2dca Upgrade PHPStan
231e90a [Docs] Upgrade to Symfony 6.1 stable

composer.json

@@ -58,9 +58,9 @@
     },
     "require-dev": {
         "doctrine/annotations": "^1.9",
-        "ekino/phpstan-banned-code": "^0.4",
+        "ekino/phpstan-banned-code": "^1.0",
         "phpspec/prophecy-phpunit": "^2.0",
-        "phpstan/phpstan": "^0.12.32",
+        "phpstan/phpstan": "^1.6",
         "psr/log": "^1",
         "symfony/browser-kit": "^5.1|^6.0",
         "symfony/expression-language": "^5.1|^6.0",

doc/app/composer.json

@@ -8,24 +8,24 @@
         "composer/package-versions-deprecated": "^1.11",
         "phpdocumentor/reflection-docblock": "^5.2",
         "stenope/stenope": "dev-master",
-        "symfony/asset": "^6.1@RC",
-        "symfony/console": "^6.1@RC",
-        "symfony/dotenv": "^6.1@RC",
+        "symfony/asset": "^6.1",
+        "symfony/console": "^6.1",
+        "symfony/dotenv": "^6.1",
         "symfony/flex": "^1.3.1",
-        "symfony/framework-bundle": "^6.1@RC",
+        "symfony/framework-bundle": "^6.1",
         "symfony/monolog-bundle": "^3.7",
-        "symfony/runtime": "^6.1@RC",
-        "symfony/twig-bundle": "^6.1@RC",
+        "symfony/runtime": "^6.1",
+        "symfony/twig-bundle": "^6.1",
         "symfony/webpack-encore-bundle": "^1.11",
-        "symfony/yaml": "^6.1@RC",
+        "symfony/yaml": "^6.1",
         "twig/extra-bundle": "^2.12|^3.0",
         "twig/twig": "^2.12|^3.0"
     },
     "require-dev": {
-        "symfony/debug-bundle": "^6.1@RC",
-        "symfony/stopwatch": "^6.1@RC",
-        "symfony/var-dumper": "^6.1@RC",
-        "symfony/web-profiler-bundle": "^6.1@RC"
+        "symfony/debug-bundle": "^6.1",
+        "symfony/stopwatch": "^6.1",
+        "symfony/var-dumper": "^6.1",
+        "symfony/web-profiler-bundle": "^6.1"
     },
     "config": {
         "optimize-autoloader": true,