Update tracing-subscriber requirement from 0.2.22 to 0.3.1

Updates the requirements on [tracing-subscriber](https://github.com/tokio-rs/tracing) to permit the latest version.
- [Release notes](https://github.com/tokio-rs/tracing/releases)
- [Commits](tokio-rs/tracing@tracing-subscriber-0.2.22...tracing-subscriber-0.3.1)

---
updated-dependencies:
- dependency-name: tracing-subscriber
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

crates/bevy_log/Cargo.toml

@@ -13,7 +13,7 @@ keywords = ["bevy"]
 bevy_app = { path = "../bevy_app", version = "0.5.0" }
 bevy_utils = { path = "../bevy_utils", version = "0.5.0" }
 
-tracing-subscriber = {version = "0.2.22", features = ["registry"]}
+tracing-subscriber = {version = "0.3.1", features = ["registry"]}
 tracing-chrome = { version = "0.3.1", optional = true }
 tracing-tracy = { version = "0.7.0", optional = true }