Update to new inventory version

Author: konstin

Cargo.toml

@@ -20,21 +20,21 @@ appveyor = { repository = "fafhrd91/pyo3" }
 codecov = { repository = "PyO3/pyo3", branch = "master", service = "github" }
 
 [dependencies]
-libc = "0.2.43"
+libc = "0.2.48"
 spin = "0.5.0"
 num-traits = "0.2.6"
 pyo3cls = { path = "pyo3cls", version = "=0.6.0-alpha.2" }
 mashup = "0.1.9"
 num-complex = { version = "0.2.1", optional = true }
-inventory = "0.1.2"
+inventory = "0.1.3"
 
 [dev-dependencies]
-assert_approx_eq = "1.0.0"
+assert_approx_eq = "1.1.0"
 docmatic = "0.1.2"
 indoc = "0.3.1"
 
 [build-dependencies]
-regex = "1.0.5"
+regex = "1.1.0"
 version_check = "0.1.5"
 
 [features]