update lockStderrWriter sites

use the application's Io implementation where possible. This correctly
makes writing to stderr cancelable, fallible, and participate in the
application's event loop. It also removes one more hard-coded
dependency on a secondary Io implementation.

lib/std/Progress.zig

@@ -764,7 +764,7 @@ fn appendTreeSymbol(symbol: TreeSymbol, buf: []u8, start_i: usize) usize {
     }
 }
 
-pub fn clearWrittenWithEscapeCodes(file_writer: *Io.File.Writer) anyerror!void {
+pub fn clearWrittenWithEscapeCodes(file_writer: *Io.File.Writer) Io.Writer.Error!void {
     if (noop_impl or !global_progress.need_clear) return;
     try file_writer.writeAllUnescaped(clear ++ progress_remove);
     global_progress.need_clear = false;