Fix nuget pack error of runtime.win (#1519)

* 460 -> 470

* ErrorActionPreference

* update samples

.github/workflows/windows.yml

@@ -96,6 +96,8 @@ jobs:
       - name: Pack NuGet packages
         shell: powershell
         run: |
+          $ErrorActionPreference = "Stop"
+          
           $date = Get-Date -Format "yyyyMMdd"
           $version = "${env:OPENCV_VERSION}.${date}-beta"
           Write-Host "version = ${version}"

nuget/OpenCvSharp4.runtime.win.nuspec

@@ -27,8 +27,8 @@
     <files>
         <file src="..\src\Release\x64\OpenCvSharpExtern.dll"   target="runtimes\win-x64\native" />
         <file src="..\src\Release\Win32\OpenCvSharpExtern.dll" target="runtimes\win-x86\native" />
-        <file src="..\opencv_files\opencv460_win_x64\x64\vc17\bin\opencv_videoio_ffmpeg470_64.dll" target="runtimes\win-x64\native" />
-        <file src="..\opencv_files\opencv460_win_x86\x86\vc17\bin\opencv_videoio_ffmpeg470.dll"    target="runtimes\win-x86\native" />
+        <file src="..\opencv_files\opencv470_win_x64\x64\vc17\bin\opencv_videoio_ffmpeg470_64.dll" target="runtimes\win-x64\native" />
+        <file src="..\opencv_files\opencv470_win_x86\x86\vc17\bin\opencv_videoio_ffmpeg470.dll"    target="runtimes\win-x86\native" />
         <file src="OpenCvSharp4.runtime.win.props" target="build\net48\OpenCvSharp4.runtime.win.props" />
         <file src="OpenCvSharp4.runtime.win.props" target="build\netstandard\OpenCvSharp4.runtime.win.props" />
         <file src="OpenCvSharp4.runtime.win.props" target="build\netcoreapp\OpenCvSharp4.runtime.win.props" />