Dev dependency upgrades

Author: jamwaffles

Cargo.toml

@@ -24,12 +24,12 @@ embedded-hal = "0.2.3"
 embedded-graphics-core = { version = "0.3.2", optional = true }
 
 [dev-dependencies]
-cortex-m = "0.6.1"
+cortex-m = "0.7.3"
 cortex-m-rt = "0.6.11"
 panic-semihosting = "0.5.3"
 embedded-graphics = "0.7.1"
 tinybmp = "0.3.1"
-stm32f1xx-hal = { version = "0.5.2", features = [ "rt", "stm32f103" ] }
+stm32f1xx-hal = { version = "0.7.0", features = [ "rt", "stm32f103" ] }
 
 [features]
 default = ["graphics"]