cargo prod(deps): update tracing-log requirement from 0.1 to 0.2

Updates the requirements on [tracing-log](https://github.com/tokio-rs/tracing) to permit the latest version.
- [Release notes](https://github.com/tokio-rs/tracing/releases)
- [Commits](tokio-rs/tracing@tracing-log-0.1.0...tracing-log-0.2.0)

---
updated-dependencies:
- dependency-name: tracing-log
  dependency-type: direct:production
...

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

schemer-repl/Cargo.toml

@@ -27,6 +27,6 @@ schemer-lang = { version = "0.1", path = "../schemer-lang" }
 schemer-library = { version = "0.1", path = "../schemer-library" }
 structopt = "0.3"
 tracing = "0.1"
-tracing-log = "0.1"
+tracing-log = "0.2"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 xdirs = "0.1"