Add clippy to CI testing.

Signed-off-by: Nicholas Nethercote <n.nethercote@gmail.com>

Author: nnethercote

ci/runtests.sh

@@ -15,6 +15,7 @@ cargo fmt -- --check
 
 # Check everything first
 cargo check --all-targets --locked
+cargo clippy --all-targets
 
 # stable, std
 cargo build --release --features mctp-estack/log