Run cargo clean after write-seeds step

.. to hopefully clear up some disk space in the process.

Author: tnull

fuzz/ci-fuzz.sh

@@ -18,6 +18,7 @@ export RUSTFLAGS="--cfg=secp256k1_fuzz --cfg=hashes_fuzz"
 mkdir -p hfuzz_workspace/full_stack_target/input
 pushd write-seeds
 RUSTFLAGS="$RUSTFLAGS --cfg=fuzzing" cargo run ../hfuzz_workspace/full_stack_target/input
+cargo clean
 popd
 
 cargo install --color always --force honggfuzz --no-default-features