Update env_logger requirement from 0.10 to 0.11

Updates the requirements on [env_logger](https://github.com/rust-cli/env_logger) to permit the latest version.
- [Release notes](https://github.com/rust-cli/env_logger/releases)
- [Changelog](https://github.com/rust-cli/env_logger/blob/main/CHANGELOG.md)
- [Commits](rust-cli/env_logger@v0.10.0...v0.11.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

bui-demo/Cargo.toml

@@ -11,7 +11,7 @@ async-change-tracker = "0.3.2"
 bui-backend = {version="0.15", default-features = false, path=".."}
 bui-backend-types = {version="0.8", path="../types", features=["uuid-v4"]}
 log = "0.4"
-env_logger = "0.10"
+env_logger = "0.11"
 includedir = {version="0.6", optional=true}
 phf = {version="0.8", optional=true}
 serde = "1.0"