ZJIT: Update insta and make snapshot strings consistently raw

Author: rwstauner

Cargo.lock

@@ -12,7 +12,7 @@ capstone = { version = "0.14.0", optional = true }
 jit = { version = "0.1.0", path = "../jit" }
 
 [dev-dependencies]
-insta = "1.43.1"
+insta = "1.46.3"
 
 # NOTE: Development builds select a set of these via configure.ac
 # For debugging, `make V=1` shows exact cargo invocation.