Relax version requirement on the macro crate.

This means that we can't keep the versions in sync anymore. We need to
start using semver for the macro crate as well.

Author: m-ou-se

Cargo.toml

@@ -13,7 +13,7 @@ keywords = ["python", "inline", "embed", "macro"]
 autoexamples = false
 
 [dependencies]
-inline-python-macros = { version = "=0.5.0", path = "./macros" }
+inline-python-macros = { version = "0.5.0", path = "./macros" }
 pyo3 = { version = "0.10.0", default-features = false }
 
 [workspace]