Bump to pyo3 0.25

Author: kylebarron

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "pyo3-async-runtimes"
 description = "PyO3 bridges from Rust runtimes to Python's Asyncio library"
-version = "0.24.0"
+version = "0.25.0"
 authors = [
     "Andrew J Westlake <[email protected]>",
     "David Hewitt <[email protected]>",

src/async_std.rs

@@ -5,6 +5,7 @@
 //!   class="module-item stab portability"
 //!   style="display: inline; border-radius: 3px; padding: 2px; font-size: 80%; line-height: 1.2;"
 //! ><code>unstable-streams</code></span>
+//!
 //! are only available when the `unstable-streams` Cargo feature is enabled:
 //!
 //! ```toml