Merge pull request #68 from PyO3/dependabot/cargo/pyo3-0.27

Update pyo3 requirement from 0.26 to 0.27

Author: kylebarron

Cargo.toml

@@ -120,11 +120,11 @@ futures = "0.3"
 inventory = { version = "0.3", optional = true }
 once_cell = "1.14"
 pin-project-lite = "0.2"
-pyo3 = "0.26"
+pyo3 = "0.27"
 pyo3-async-runtimes-macros = { path = "pyo3-async-runtimes-macros", version = "=0.26.0", optional = true }
 
 [dev-dependencies]
-pyo3 = { version = "0.26", features = ["macros"] }
+pyo3 = { version = "0.27", features = ["macros"] }
 
 [dependencies.async-std]
 version = "1.12"