[FSSDK-11731] windows sdk for 4.0.3 pre-requisite

Author: junaed-optimizely

.github/workflows/csharp.yml

@@ -47,6 +47,7 @@ jobs:
       - name: Install .NET Framework Developer Packs
         run: |
           choco install netfx-4.5.2-devpack -y
+          choco install windows-sdk-7.1 -y
           choco install netfx-4.0.3-devpack -y
       - name: Restore NuGet packages
         run: nuget restore ./OptimizelySDK.NETFramework.sln

.github/workflows/csharp_release.yml

@@ -41,6 +41,11 @@ jobs:
         uses: microsoft/setup-msbuild@v2
       - name: Setup NuGet
         uses: nuget/setup-nuget@v2
+      - name: Install .NET Framework Developer Packs
+        run: |
+          choco install netfx-4.5.2-devpack -y
+          choco install windows-sdk-7.1 -y
+          choco install netfx-4.0.3-devpack -y
       - name: Restore NuGet packages
         run: nuget restore ./OptimizelySDK.NETFramework.sln
       - name: Build and strongly name assemblies