attributes: prepare to release v0.1.24 (tokio-rs#2574)

# 0.1.24 (April 24th, 2023)

This release of `tracing-attributes` adds support for passing an
optional `level` to the `err` and `ret` arguments to `#[instrument]`,
allowing the level of the generated return-value event to be overridden.
For example,

```rust
#[instrument(err(level = "info"))]
fn my_great_function() -> Result<(), &'static str> {
    // ...
}
```

will emit an `INFO`-level event if the function returns an `Err`.

In addition, this release updates the [`syn`] dependency to v2.x.x.

### Added

- `level` argument to `err` and `ret` to override the level of the
  generated return value event (tokio-rs#2335)
- Improved compiler error message when `#[instrument]` is added to a
  `const fn` (tokio-rs#2418)

### Changed

- Updated `syn` dependency to 2.0 (tokio-rs#2516)

### Fixed

- Fix `clippy::unreachable` warnings in `#[instrument]`-generated code
  (tokio-rs#2356)
- Removed unused "visit" feature flag from `syn` dependency (tokio-rs#2530)

### Documented

- Documented default level for `err` (tokio-rs#2433)
- Improved documentation for levels in `#[instrument]` (tokio-rs#2350)

Thanks to @nitnelave, @jsgf, @Abhicodes-crypto, @LukeMathWalker,
@andrewpollack, @quad, @klensy, @davidpdrsn, and @dbidwell94 for
contributign to this release!

[`syn`]: https://crates.io/crates/syn

tracing-attributes/CHANGELOG.md

@@ -1,10 +1,61 @@
+# 0.1.24 (April 24th, 2023)
+
+This release of `tracing-attributes` adds support for passing an optional
+`level` to the `err` and `ret` arguments to `#[instrument]`, allowing the level
+of the generated return-value event to be overridden. For example,
+
+```rust
+#[instrument(err(level = "info"))]
+fn my_great_function() -> Result<(), &'static str> {
+    // ...
+}
+```
+
+will emit an `INFO`-level event if the function returns an `Err`.
+
+In addition, this release updates the [`syn`] dependency to v2.x.x.
+
+### Added
+
+- `level` argument to `err` and `ret` to override the level of the generated
+  return value event ([#2335])
+- Improved compiler error message when `#[instrument]` is added to a `const fn`
+  ([#2418])
+
+### Changed
+
+- Updated `syn` dependency to 2.0 ([#2516])
+
+### Fixed
+
+- Fix `clippy::unreachable` warnings in `#[instrument]`-generated code ([#2356])
+- Removed unused "visit" feature flag from `syn` dependency ([#2530])
+
+### Documented
+
+- Documented default level for `err` ([#2433])
+- Improved documentation for levels in `#[instrument]` ([#2350])
+
+Thanks to @nitnelave, @jsgf, @Abhicodes-crypto, @LukeMathWalker, @andrewpollack,
+@quad, @klensy, @davidpdrsn, and @dbidwell94 for contributign to this release!
+
+[`syn`]: https://crates.io/crates/syn
+[#2335]: https://github.com/tokio-rs/tracing/pull/2335
+[#2418]: https://github.com/tokio-rs/tracing/pull/2418
+[#2516]: https://github.com/tokio-rs/tracing/pull/2516
+[#2356]: https://github.com/tokio-rs/tracing/pull/2356
+[#2530]: https://github.com/tokio-rs/tracing/pull/2530
+[#2433]: https://github.com/tokio-rs/tracing/pull/2433
+[#2350]: https://github.com/tokio-rs/tracing/pull/2350
+
 # 0.1.23 (October 6, 2022)
 
 This release of `tracing-attributes` fixes a bug where compiler diagnostic spans
 for type errors in `#[instrument]`ed `async fn`s have the location of the
 `#[instrument]` attribute rather than the location of the actual error, and a
 bug where inner attributes in `#[instrument]`ed functions would cause a compiler
 error.
+
 ### Fixed
 
 - Fix incorrect handling of inner attributes in `#[instrument]`ed functions ([#2307])