Upgrade pinned version

Author: saulshanabrook

Cargo.lock

@@ -11,7 +11,7 @@ crate-type = ["cdylib"]
 [dependencies]
 # Use unreleased version to depend on signature improvements https://github.com/PyO3/pyo3/pull/2702
 pyo3 = { version = "0.18.1", features = ["extension-module"] }
-egg-smol = { git = "https://github.com/saulshanabrook/egg-smol", rev = "a9a388e0f7c05dfb11943692e9c3e3407089493e" }
+egg-smol = { git = "https://github.com/saulshanabrook/egg-smol", rev = "bc4dae5ff5c9052a7f751bb79e3ebf76178dcc9b" }
 # egg-smol = { path = "../egg-smol" }
 pyo3-log = "0.8.1"
 log = "0.4.17"