Merge branch '6.0' into 6.1

* 6.0:
  [Mime] Rename SMimeEncryptorTest to SMimeEncrypterTest
  Run tests with doctrine/collections 2

Author: nicolas-grekas

composer.json

@@ -27,7 +27,7 @@
         "symfony/service-contracts": "^1.1|^2|^3"
     },
     "require-dev": {
-        "doctrine/collections": "~1.0",
+        "doctrine/collections": "^1.0|^2.0",
         "symfony/validator": "^5.4|^6.0",
         "symfony/dependency-injection": "^5.4|^6.0",
         "symfony/expression-language": "^5.4|^6.0",