Dependency updates, apply updates from base

src/main.rs

@@ -7,7 +7,7 @@
 
 #![deny(unsafe_code)]
 #![no_std]
-#![no_main]
+#![cfg_attr(not(doc), no_main)]
 
 use rtt_target::{rprintln, rtt_init_print};
 use panic_rtt_target as _;