build(deps): unpin test-log because of MSRV updates (#5300)

Co-authored-by: Boquan Fang <bqfang@amazon.com>

Author: boquan-fang

bindings/rust/standard/integration/Cargo.toml

@@ -29,9 +29,7 @@ tokio = { version = "1", features = ["macros", "test-util"] }
 
 tracing = "0.1"
 tracing-subscriber = "0.3"
-# TODO: Unpin when s2n-tls MSRV >= 1.71, https://github.com/aws/s2n-tls/issues/4893
-test-log = { version = "=0.2.14", default-features = false, features = ["trace"]}
-test-log-macros = "=0.2.17"
+test-log = { version = "0.2", default-features = false, features = ["trace"]}
 
 http = "1.1"
 http-body-util = "0.1"