Updated to Symfony 5.3 RC1

Author: javiereguiluz

composer.json

@@ -3,7 +3,7 @@
     "license": "MIT",
     "type": "project",
     "description": "Symfony Demo Application",
-    "minimum-stability": "stable",
+    "minimum-stability": "rc",
     "prefer-stable": true,
     "replace": {
         "symfony/polyfill-php72": "*",
@@ -19,38 +19,38 @@
         "erusev/parsedown": "^1.6",
         "sensio/framework-extra-bundle": "^6.1",
         "symfony/apache-pack": "^1.0",
-        "symfony/asset": "^5.2",
-        "symfony/console": "^5.2",
-        "symfony/dotenv": "^5.2",
-        "symfony/expression-language": "^5.2",
+        "symfony/asset": "5.3.0-rc1",
+        "symfony/console": "5.3.0-rc1",
+        "symfony/dotenv": "5.3.0-rc1",
+        "symfony/expression-language": "5.3.0-rc1",
         "symfony/flex": "^1.1",
-        "symfony/form": "^5.2",
-        "symfony/framework-bundle": "^5.2",
-        "symfony/intl": "^5.2",
-        "symfony/mailer": "^5.2",
+        "symfony/form": "5.3.0-rc1",
+        "symfony/framework-bundle": "5.3.0-rc1",
+        "symfony/intl": "5.3.0-rc1",
+        "symfony/mailer": "5.3.0-rc1",
         "symfony/monolog-bundle": "^3.1",
         "symfony/polyfill-intl-messageformatter": "^1.12",
-        "symfony/security-bundle": "^5.2",
-        "symfony/string": "^5.2",
-        "symfony/translation": "^5.2",
+        "symfony/security-bundle": "5.3.0-rc1",
+        "symfony/string": "5.3.0-rc1",
+        "symfony/translation": "5.3.0-rc1",
         "symfony/twig-pack": "^1.0",
-        "symfony/validator": "^5.2",
+        "symfony/validator": "5.3.0-rc1",
         "symfony/webpack-encore-bundle": "^1.4",
-        "symfony/yaml": "^5.2",
+        "symfony/yaml": "5.3.0-rc1",
         "tgalopin/html-sanitizer-bundle": "^1.2",
         "twig/intl-extra": "^3.0",
         "twig/markdown-extra": "^3.0"
     },
     "require-dev": {
         "dama/doctrine-test-bundle": "^6.2",
         "doctrine/doctrine-fixtures-bundle": "^3.0",
-        "symfony/browser-kit": "^5.2",
-        "symfony/css-selector": "^5.2",
-        "symfony/debug-bundle": "^5.2",
+        "symfony/browser-kit": "5.3.0-rc1",
+        "symfony/css-selector": "5.3.0-rc1",
+        "symfony/debug-bundle": "5.3.0-rc1",
         "symfony/maker-bundle": "^1.11",
-        "symfony/phpunit-bridge": "^5.2",
-        "symfony/stopwatch": "^5.2",
-        "symfony/web-profiler-bundle": "^5.2"
+        "symfony/phpunit-bridge": "5.3.0-rc1",
+        "symfony/stopwatch": "5.3.0-rc1",
+        "symfony/web-profiler-bundle": "5.3.0-rc1"
     },
     "config": {
         "platform": {