Update miri for change to random API

Author: joshtriplett

src/tools/miri/tests/pass/shims/random.rs

@@ -1,5 +1,5 @@
 #![feature(random)]
 
 fn main() {
-    let _x: i32 = std::random::random();
+    let _x: i32 = std::random::random(..);
 }