Remove assemblyVersion.precision from version.json (#297) (#333)

Co-authored-by: Luke Bordonaro <lukebo@microsoft.com>

Author: helenkzhang

version.json

@@ -1,13 +1,13 @@
 {
   "$schema": "https://raw.githubusercontent.com/dotnet/Nerdbank.GitVersioning/master/src/NerdBank.GitVersioning/version.schema.json",
   "version": "1.0",
-  "assemblyVersion": {
-      "precision": "revision"
-  },
   "publicReleaseRefSpec": [
     "^refs/heads/main$",
     "^refs/heads/release/v?\\d+(?:\\.\\d+)?$"
   ],
+  "nugetPackageVersion": {
+    "semVer": 2
+  },
   "cloudBuild": {
     "buildNumber": {
       "enabled": true