minor #44209 Allow v3 contracts where possible (derrabus)

This PR was merged into the 5.4 branch.

Discussion
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Allow v3 contracts where possible

| Q             | A
| ------------- | ---
| Branch?       | 5.4
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Tickets       | N/A
| License       | MIT
| Doc PR        | N/A

Commits
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e171a3e51e Allow v3 contracts where possible

Author: nicolas-grekas

composer.json

@@ -17,7 +17,7 @@
     ],
     "require": {
         "php": ">=7.2.5",
-        "symfony/deprecation-contracts": "^2.1",
+        "symfony/deprecation-contracts": "^2.1|^3",
         "symfony/security-core": "^5.4|^6.0",
         "symfony/http-foundation": "^5.3|^6.0",
         "symfony/http-kernel": "^5.3|^6.0",