Update dependecies

Author: Sh3Rm4n

Cargo.toml

@@ -12,8 +12,8 @@ repository = "https://github.com/rust-embedded-community/usb-device"
 [dependencies]
 defmt = { version = "0.3", optional = true }
 portable-atomic = { version = "1.2.0", default-features = false }
-num_enum = { version = "0.6.1", default-features = false }
-heapless = "0.7"
+num_enum = { version = "0.7.1", default-features = false }
+heapless = "0.8"
 
 [dev-dependencies]
 rusb = "0.9.1"