feat: Update workflow to use build-test.yml

The nuget-push.yml workflow has been updated to use the build-test.yml file instead of the build.yml file. This change ensures that the correct workflow is used for building and testing the code before publishing the NuGet package.

.github/workflows/nuget-push.yml

@@ -18,7 +18,7 @@ on:
 
 jobs:
   build-test:
-    uses: ./.github/workflows/build.yml
+    uses: ./.github/workflows/build-test.yml
 
   publish-nuget:
     name: Publish NuGet package