Merge branch '4.4' into 5.2

* 4.4:
  Leverage str_contains/str_starts_with
  Leverage str_ends_with

Author: nicolas-grekas

composer.json

@@ -25,6 +25,7 @@
     "require": {
         "php": ">=7.2.5",
         "symfony/deprecation-contracts": "^2.1",
+        "symfony/polyfill-php80": "^1.16",
         "symfony/string": "^5.2.8"
     },
     "autoload": {