Allow v3 contracts where possible

Author: derrabus

composer.json

@@ -23,11 +23,11 @@
     "require": {
         "php": ">=7.2.5",
         "psr/log": "^1|^2|^3",
-        "symfony/deprecation-contracts": "^2.1",
+        "symfony/deprecation-contracts": "^2.1|^3",
         "symfony/http-client-contracts": "^2.4",
         "symfony/polyfill-php73": "^1.11",
         "symfony/polyfill-php80": "^1.16",
-        "symfony/service-contracts": "^1.0|^2"
+        "symfony/service-contracts": "^1.0|^2|^3"
     },
     "require-dev": {
         "amphp/amp": "^2.5",