Update to stable R# 2026.1.0

Author: bkoelman

.config/dotnet-tools.json

@@ -3,7 +3,7 @@
   "isRoot": true,
   "tools": {
     "jetbrains.resharper.globaltools": {
-      "version": "2025.3.4",
+      "version": "2026.1.0",
       "commands": [
         "jb"
       ],