Update BuildTools to preview4-04104-01 (dotnet/core-setup#6671)

Commit migrated from https://github.com/dotnet/core-setup/commit/3a2d0293bc7717a6fa038f2a12a9a91391205b06

src/installer/BuildToolsVersion.txt

-3.0.0-preview4-04022-01
\ No newline at end of file
+3.0.0-preview4-04104-01
\ No newline at end of file

src/installer/dependencies.props

@@ -9,7 +9,7 @@
        These ref versions are pulled from https://github.com/dotnet/versions.
   -->
   <PropertyGroup>
-    <BuildToolsCurrentRef>00797464e62272e9c721a1854abe49ff05743bdf</BuildToolsCurrentRef>
+    <BuildToolsCurrentRef>7b75f12cdf1debb4bbda3bc167ead8f43c343265</BuildToolsCurrentRef>
   </PropertyGroup>
 
   <PropertyGroup>