Fix deps=low

Author: nicolas-grekas

composer.json

@@ -24,15 +24,15 @@
     "require-dev": {
         "doctrine/dbal": "^2.13.1|^3.0",
         "predis/predis": "^1.1|^2.0",
-        "symfony/cache": "^5.4|^6.0",
+        "symfony/cache": "^6.3",
         "symfony/dependency-injection": "^5.4|^6.0",
         "symfony/http-kernel": "^5.4.12|^6.0.12|^6.1.4",
         "symfony/mime": "^5.4|^6.0",
         "symfony/expression-language": "^5.4|^6.0",
         "symfony/rate-limiter": "^5.2|^6.0"
     },
     "conflict": {
-        "symfony/cache": "<6.2"
+        "symfony/cache": "<6.3"
     },
     "autoload": {
         "psr-4": { "Symfony\\Component\\HttpFoundation\\": "" },