Failing test in `iroha_crypto`

[mversic]

Find out why this tests fails sometimes:

---- signature::secp256k1::test::secp256k1_sign stdout ---- thread 'signature::secp256k1::test::secp256k1_sign' panicked at crypto/src/signature/secp256k1.rs:259:78: called Result::unwrap() on an Err value: Signing("signature::Error { source: None }") note: run with RUST_BACKTRACE=1 environment variable to display a backtrace