[2.x] Ensure void return type translates to null

Author: WyriHaximus

composer.json

@@ -10,17 +10,17 @@
         }
     ],
     "require": {
-        "php": "^8.1",
+        "php": "^8.2",
         "ext-parallel": "*",
         "react/async": "^4.2",
         "react/event-loop": "^1.5",
-        "react/promise": "^2.11 || ^3.2",
+        "react/promise": "^3.2",
         "wyrihaximus/constants": "^1.6.0",
         "wyrihaximus/metrics": "^2.1"
     },
     "require-dev": {
         "react-parallel/stubs": "^1.1",
-        "wyrihaximus/async-test-utilities": "^5.0.25 || ^8.0.5"
+        "wyrihaximus/async-test-utilities": "^8.0.5"
     },
     "autoload": {
         "psr-4": {
@@ -40,7 +40,7 @@
             "infection/extension-installer": true
         },
         "platform": {
-            "php": "8.1.13"
+            "php": "8.2.13"
         },
         "sort-packages": true
     },