doc: update version of tracing-subscriber

This fixes the issue tokio-rs/tracing#2573

README.md

@@ -37,7 +37,7 @@ First, add the library to your project by adding the following to your `Cargo.to
 # ...
 cloud-detect = "2"
 tokio = { version = "1", features = ["full"] }
-tracing-subscriber = { version = "0.2", features = ["env-filter"] } # Optional; for logging.
+tracing-subscriber = { version = "0.3", features = ["env-filter"] } # Optional; for logging.
 ```
 
 To use the non-async blocking API instead, enable the `blocking` feature:
@@ -46,7 +46,7 @@ To use the non-async blocking API instead, enable the `blocking` feature:
 [dependencies]
 # ...
 cloud-detect = { version = "2", features = ["blocking"] }
-tracing-subscriber = { version = "0.2", features = ["env-filter"] } # Optional; for logging.
+tracing-subscriber = { version = "0.3", features = ["env-filter"] } # Optional; for logging.
 ```
 
 Detect the cloud provider and print the result (with default timeout; async).

src/blocking/mod.rs

@@ -17,7 +17,7 @@
 //! ```toml
 //! # ...
 //! cloud_detect = { version = "2", features = ["blocking"] }
-//! tracing-subscriber = { version = "0.2", features = ["env-filter"] } # Optional; for logging
+//! tracing-subscriber = { version = "0.3", features = ["env-filter"] } # Optional; for logging
 //! ```
 //!
 //! ## Examples

src/lib.rs

@@ -11,7 +11,7 @@
 //! # ...
 //! cloud_detect = "2"
 //! tokio = { version = "1", features = ["full"] }
-//! tracing-subscriber = { version = "0.2", features = ["env-filter"] } # Optional; for logging
+//! tracing-subscriber = { version = "0.3", features = ["env-filter"] } # Optional; for logging
 //! ```
 //!
 //! ## Examples