Add dotnet restore step for PCLCS before build

Agent-Logs-Url: https://github.com/Meloong-Git/PCL/sessions/faa92c72-a55a-4172-9464-e5c3be47f6fa

Co-authored-by: LTCatt <40348278+LTCatt@users.noreply.github.com>

Author: Copilot

.github/workflows/build.yml

@@ -55,6 +55,9 @@ jobs:
         (gc "Plain Craft Launcher 2\Modules\ModSecret.vb") -replace 'Public CurseForgeAPIKey As String = If(Environment.GetEnvironmentVariable("PCL_CURSEFORGE_API_KEY"), "")', 'Public CurseForgeAPIKey As String = If(Environment.GetEnvironmentVariable("PCL_CURSEFORGE_API_KEY"), "${{ secrets.CURSEFORGE_API_KEY }}")' | Out-File "Plain Craft Launcher 2\Modules\ModSecret.vb"
         (gc "Plain Craft Launcher 2\Modules\Base\ModBase.vb") -replace 'Public Const CommitHash As String = ""', 'Public Const CommitHash As String = "${{ github.sha }}"' | Out-File "Plain Craft Launcher 2\Modules\Base\ModBase.vb"
         
+    - name: Restore NuGet Packages
+      run: dotnet restore PCLCS\PCLCS.csproj
+
     - name: Build
       run: msbuild "Plain Craft Launcher 2\Plain Craft Launcher 2.vbproj" -p:Configuration=${{ matrix.configuration }}