Bump dotnet SDK to 10.0.100-preview.2.25081.1

Author: roji

global.json

@@ -1,11 +1,11 @@
 {
   "sdk": {
-    "version": "10.0.100-alpha.1.25064.3",
+    "version": "10.0.100-preview.2.25081.1",
     "allowPrerelease": true,
     "rollForward": "latestMajor"
   },
   "tools": {
-    "dotnet": "10.0.100-alpha.1.25064.3",
+    "dotnet": "10.0.100-preview.2.25081.1",
     "runtimes": {
       "dotnet": [
         "$(MicrosoftNETCoreAppRuntimewinx64Version)"