Rollback to dotnet-stryker 4.3.0

Version 4.4.0 introduced a regression that makes Stryker.NET sometimes crash, see stryker-mutator/stryker-net#3103

Author: 0xced

.config/dotnet-tools.json

@@ -10,7 +10,7 @@
       "rollForward": true
     },
     "dotnet-stryker": {
-      "version": "4.4.0",
+      "version": "4.3.0",
       "commands": [
         "dotnet-stryker"
       ],