update dependencies for examples

Author: hacknus

Cargo.toml

@@ -72,8 +72,8 @@ heapless = "0.7.16"
 panic-halt = "0.2.0"
 ssd1306 = "0.7.1"
 embedded-graphics = "0.7.1"
-usb-device = "0.2.9"
-usbd-serial = "0.1.1"
+usb-device = "0.3.1"
+usbd-serial = "0.2.0"
 micromath = "2"
 cortex-m-rtic = { version = "1.1.4", features = ["test-critical-section"] }
 dwt-systick-monotonic = "1.1"