Improve IHttpClient factories (#20)

Codestyle fixes
Setup CODEOWNERS
Setup dependabot

SystemExtensions.NetStandard/Extensions/BytesExtensions.cs

@@ -1,25 +1,24 @@
 using System.IO;
 
-namespace System.Extensions
+namespace System.Extensions;
+
+public static class BytesExtensions
 {
-    public static class BytesExtensions
+    public static byte[] ReadAllBytes(this Stream stream)
     {
-        public static byte[] ReadAllBytes(this Stream stream)
+        if (stream is null)
         {
-            if (stream is null)
-            {
-                throw new ArgumentNullException(nameof(stream));
-            }
-
-            var buffer = new byte[256];
-            using var ms = new MemoryStream();
-            int read;
-            while ((read = stream.Read(buffer, 0, 256)) > 0)
-            {
-                ms.Write(buffer, 0, read);
-            }
-
-            return ms.ToArray();
+            throw new ArgumentNullException(nameof(stream));
         }
+
+        var buffer = new byte[256];
+        using var ms = new MemoryStream();
+        int read;
+        while ((read = stream.Read(buffer, 0, 256)) > 0)
+        {
+            ms.Write(buffer, 0, read);
+        }
+
+        return ms.ToArray();
     }
 }