Update to heapless 0.8, disable pool test for now (#846)

rtic-sync/Cargo.toml

@@ -17,7 +17,7 @@ license = "MIT OR Apache-2.0"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-heapless = "0.7"
+heapless = "0.8"
 critical-section = "1"
 rtic-common = { version = "1.0.0", path = "../rtic-common" }
 portable-atomic = { version = "1", default-features = false }

rtic/Cargo.toml

@@ -43,7 +43,7 @@ rtic-core = "1"
 critical-section = "1"
 
 [dev-dependencies]
-heapless = "0.7.7"
+heapless = "0.8"
 lm3s6965 = "0.2"
 cortex-m-semihosting = "0.5.0"
 rtic-time = { path = "../rtic-time" }