add some debug logging for music video scanning (#2408)

ErsatzTV.Scanner/Core/Metadata/LocalMetadataProvider.cs

@@ -1338,7 +1338,14 @@ public class LocalMetadataProvider : ILocalMetadataProvider
     {
         try
         {
+            _logger.LogDebug("Reading artist metadata from {NfoFileName}", nfoFileName);
+            _logger.LogDebug("Total memory: {TotalMemory}", GC.GetTotalMemory(false));
+
             Either<BaseError, ArtistNfo> maybeNfo = await _artistNfoReader.ReadFromFile(nfoFileName);
+            
+            _logger.LogDebug("Finished reading artist metadata from {NfoFileName}", nfoFileName);
+            _logger.LogDebug("Total memory: {TotalMemory}", GC.GetTotalMemory(false));
+
             foreach (BaseError error in maybeNfo.LeftToSeq())
             {
                 _logger.LogInformation(
@@ -1368,6 +1375,7 @@ public class LocalMetadataProvider : ILocalMetadataProvider
         catch (Exception ex)
         {
             _logger.LogInformation(ex, "Failed to read artist nfo metadata from {Path}", nfoFileName);
+            _logger.LogDebug("Total memory on failure: {TotalMemory}", GC.GetTotalMemory(false));
             _client.Notify(ex);
             return None;
         }

ErsatzTV.Scanner/Core/Metadata/Nfo/NfoReaderBase.cs

@@ -5,7 +5,7 @@ namespace ErsatzTV.Scanner.Core.Metadata.Nfo;
 
 public abstract partial class NfoReaderBase
 {
-    protected static readonly byte[] Buffer = new byte[8 * 1024 * 1024];
+    protected static readonly byte[] Buffer = new byte[8192];
     protected static readonly Regex Pattern = ControlCharacters();
 
     protected static readonly XmlReaderSettings Settings =