Merge branch '3.4' into 4.3

* 3.4:
  [Workflow] fix lowest dep

Author: nicolas-grekas

composer.json

@@ -21,7 +21,7 @@
     ],
     "require": {
         "php": "^7.1.3",
-        "symfony/property-access": "~3.4.31|^4.3.4"
+        "symfony/property-access": "^3.4|^4.3"
     },
     "require-dev": {
         "psr/log": "~1.0",