upgrade to ffmpeg 7 on windows (#1727)

.github/workflows/artifacts.yml

@@ -178,7 +178,7 @@ jobs:
         id: downloadffmpeg
         name: Download ffmpeg
         with:
-          url: "https://github.com/ErsatzTV/ErsatzTV-ffmpeg/releases/download/6.1-working-cuvid/ffmpeg-6.1-working-cuvid.7z"
+          url: "https://github.com/ErsatzTV/ErsatzTV-ffmpeg/releases/download/7.0-working-cuvid/ffmpeg-7.0-working-cuvid.7z"
           target: ffmpeg/
 
       - name: Build

ErsatzTV.Infrastructure/Health/Checks/FFmpegVersionHealthCheck.cs

@@ -10,7 +10,7 @@ public class FFmpegVersionHealthCheck : BaseHealthCheck, IFFmpegVersionHealthChe
 {
     private const string BundledVersion = "7.0";
     private const string BundledVersionVaapi = "7.0";
-    private const string WindowsVersionPrefix = "n6.1";
+    private const string WindowsVersionPrefix = "n7.0";
 
     private static readonly string[] FFmpegVersionArguments = { "-version" };