Update Rust crate tracing-subscriber to 0.3.15

Cargo.lock

@@ -1076,9 +1076,9 @@ dependencies = [
 
 [[package]]
 name = "tracing-subscriber"
-version = "0.3.14"
+version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3a713421342a5a666b7577783721d3117f1b69a393df803ee17bb73b1e122a59"
+checksum = "60db860322da191b40952ad9affe65ea23e7dd6a5c442c2c42865810c6ab8e6b"
 dependencies = [
  "ansi_term",
  "matchers",

Cargo.toml

@@ -15,7 +15,7 @@ axum = { version = "0.5.11" }
 hyper = { version = "0.14.19" }
 tokio = { version = "1.19.2", features = ["full"] }
 tracing = "0.1.35"
-tracing-subscriber = {version = "0.3.14", features = ["env-filter"] }
+tracing-subscriber = {version = "0.3.15", features = ["env-filter"] }
 tower-http = { version = "0.3.4", features = ["fs", "trace", "auth"] }
 tar = "0.4.38"
 flate2 = "1.0.24"