Support v16 metadata and use it by default if it's available (#1999)

* Support v16 metadata and use it by default if it's available

* lockfile

* fix blocks test; new transaction extension in kitchensink runtime

* Bump scale-typegen to 0.11.1 to cater for Duration prelude type

* fmt

* Fix no-std test building

* Cargo update and bump substrate deps

* Update test and no-std deps

* fmt

* fix test

testing/no-std-tests/src/main.rs

@@ -13,7 +13,6 @@ pub extern "C" fn _start(_argc: isize, _argv: *const *const u8) -> isize {
 }
 
 #[lang = "eh_personality"]
-#[no_mangle]
 pub extern "C" fn rust_eh_personality() {}
 
 #[panic_handler]