testsuite: update aes-gcm (#370)

Author: newAM

Cargo.lock

@@ -80,7 +80,7 @@ path = "src/uart.rs"
 harness = false
 
 [dependencies]
-aes-gcm = { version = "0.10", default-features = false, features = ["aes"] }
+aes-gcm = { version = "0.10.3", default-features = false, features = ["aes"] }
 cortex-m = { version = "0.7", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7"
 defmt = "0.3"