rustup-init.sh: Update for 1.23.0 release

Signed-off-by: Daniel Silverstone <dsilvers@digital-scurf.org>

Author: kinnison

rustup-init.sh

@@ -25,7 +25,7 @@ RUSTUP_UPDATE_ROOT="${RUSTUP_UPDATE_ROOT:-https://static.rust-lang.org/rustup}"
 #XXX: If you change anything here, please make the same changes in setup_mode.rs
 usage() {
     cat 1>&2 <<EOF
-rustup-init 1.22.1 (76644d669 2020-07-08)
+rustup-init 1.23.0 (af3c77d66 2020-11-27)
 The installer for rustup
 
 USAGE: