chore(deps): update rust crate tracing-subscriber to v0.3.19 (#273)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [tracing-subscriber](https://tokio.rs)
([source](https://redirect.github.com/tokio-rs/tracing)) | dependencies
| patch | `0.3.18` -> `0.3.19` |

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