bump arbitrary-int in QEMU tests

Author: robamu

qemu-tests/Cargo.toml

@@ -12,7 +12,7 @@ cortex-m-semihosting = "0.5.0"
 defmt = "1"
 defmt-semihosting = "0.3"
 bitbybit = { path = "../bitbybit" }
-arbitrary-int = { version = "1.3", features = ["defmt"] }
+arbitrary-int = { version = "2", features = ["defmt"] }
 
 [profile.dev]
 opt-level = 1