Update env_logger requirement from 0.7 to 0.8

Updates the requirements on [env_logger](https://github.com/env-logger-rs/env_logger) to permit the latest version.
- [Release notes](https://github.com/env-logger-rs/env_logger/releases)
- [Changelog](https://github.com/env-logger-rs/env_logger/blob/main/CHANGELOG.md)
- [Commits](https://github.com/env-logger-rs/env_logger/commits/v0.8.4)

---
updated-dependencies:
- dependency-name: env_logger
  dependency-type: direct:production
...

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db/Cargo.toml

@@ -45,5 +45,5 @@ path = "../sql"
 version = "~1.2"
 
 [dev-dependencies]
-env_logger = "0.7"
+env_logger = "0.8"
 #tabwriter = { version = "1.2.1" }