Pull the nrf51-hal version to 0.13.0 as well

Author: hargoniX

microbit-common/Cargo.toml

@@ -30,7 +30,7 @@ embedded-hal = "0.2.4"
 
 [dependencies.nrf51-hal]
 optional = true
-version = "0.12.1"
+version = "0.13.0"
 
 [dependencies.nrf52833-hal]
 optional = true