Revendor github.com/sirupsen/logrus to v1.0.3

logrus v1.0.3 was the first release that include the change in
terminal_windows.go that stops exec'ing "cmd ver" to obtain the version
information and rather uses the x/sys/crypto/terminal.IsTerminal on the
console fd. On Windows this is a significant performance difference to
avoid the additional process activation of the "cmd ver" for each
invocation of the shim/runhcs executables.

Signed-off-by: Justin Terry (VM) <juterry@microsoft.com>

vendor/github.com/sirupsen/logrus/exported.go

@@ -31,7 +31,7 @@ func SetFormatter(formatter Formatter) {
 func SetLevel(level Level) {
 	std.mu.Lock()
 	defer std.mu.Unlock()
-	std.setLevel(level)
+	std.SetLevel(level)
 }
 
 // GetLevel returns the standard logger level.