build: bump serde-json-core version to 0.6.0

This commit bumps the version of serde-json-core to the latest one.

Author: inthehack

Cargo.lock

@@ -15,7 +15,7 @@ default-target = "riscv32imac-unknown-none-elf"
 semihosting = { version = "0.1.7", features = ["args"], optional = true }
 embedded-test-macros = { version = "0.6.1", path = "./macros" }
 serde = { version = "1.0.193", default-features = false, features = ["derive"] }
-serde-json-core = { version = "0.5.1" }
+serde-json-core = "0.6.0"
 heapless = "0.8.0"
 
 # Optional dependencies