Update ci-build.yml

Author: rnwood

.github/workflows/ci-build.yml

@@ -24,7 +24,7 @@ jobs:
       run: nuget restore WorkflowModerniser.sln
 
     - name: Build solution
-      run: msbuild WorkflowModerniser\WorkflowModerniser.csproj -t:build -p:OutputPath=WorkflowModerniser\bin\Release -p:Configuration=Release
+      run: msbuild WorkflowModerniser\WorkflowModerniser.csproj -t:build -p:OutputPath=bin\Release -p:Configuration=Release
 
     - uses: vimtor/action-zip@v1.2
       with: