chore(deps): Bump tracing-subscriber from 0.3.14 to 0.3.15

Bumps [tracing-subscriber](https://github.com/tokio-rs/tracing) from 0.3.14 to 0.3.15.
- [Release notes](https://github.com/tokio-rs/tracing/releases)
- [Commits](https://github.com/tokio-rs/tracing/compare/tracing-subscriber-0.3.14...tracing-subscriber-0.3.15)

---
updated-dependencies:
- dependency-name: tracing-subscriber
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Cargo.lock

@@ -2074,9 +2074,9 @@ 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

@@ -33,7 +33,7 @@ tracing-actix-web = "0.6.0"
 tracing-bunyan-formatter = "0.3.3"
 tracing-futures = "0.2.5"
 tracing-log = "0.1.3"
-tracing-subscriber = { version = "0.3.14", features = ["registry", "env-filter"] }
+tracing-subscriber = { version = "0.3.15", features = ["registry", "env-filter"] }
 
 [build-dependencies]
 ructe = "0.14.0"