Update UnbrandedGeneratorVersion to 1.0.0-alpha.20250702.1 (Azure#51017)

Co-authored-by: Ubuntu <cloudtest@e2944512c000006.tkkhlgj2u51eln3mcb0lygmbye.dx.internal.cloudapp.net>

Author: azure-sdk

eng/Packages.Data.props

@@ -450,7 +450,7 @@
 
   <PropertyGroup>
     <TestProxyVersion>1.0.0-dev.20250501.1</TestProxyVersion>
-    <UnbrandedGeneratorVersion>1.0.0-alpha.20250630.3</UnbrandedGeneratorVersion>
+    <UnbrandedGeneratorVersion>1.0.0-alpha.20250702.1</UnbrandedGeneratorVersion>
     <AzureGeneratorVersion>1.0.0-alpha.20250630.3</AzureGeneratorVersion>
   </PropertyGroup>
 </Project>

eng/http-client-csharp-emitter-package-lock.json

@@ -1,7 +1,7 @@
 {
   "main": "dist/src/index.js",
   "dependencies": {
-    "@typespec/http-client-csharp": "1.0.0-alpha.20250630.1"
+    "@typespec/http-client-csharp": "1.0.0-alpha.20250702.1"
   },
   "devDependencies": {
     "@azure-tools/typespec-azure-core": "0.57.0",
@@ -10,6 +10,8 @@
     "@typespec/http": "1.1.0",
     "@typespec/openapi": "1.1.0",
     "@typespec/rest": "0.71.0",
-    "@typespec/versioning": "0.71.0"
+    "@typespec/versioning": "0.71.0",
+    "@azure-tools/typespec-azure-rulesets": "0.57.0",
+    "@azure-tools/typespec-azure-resource-manager": "0.57.0"
   }
 }

eng/http-client-csharp-emitter-package.json

@@ -38,7 +38,7 @@
     "dist/generator/**"
   ],
   "dependencies": {
-    "@typespec/http-client-csharp": "1.0.0-alpha.20250630.3"
+    "@typespec/http-client-csharp": "1.0.0-alpha.20250702.1"
   },
   "devDependencies": {
     "@azure-tools/azure-http-specs": "0.1.0-alpha.19",