Update humantime requirement from 1 to 2

Updates the requirements on [humantime](https://github.com/tailhook/humantime) to permit the latest version.
- [Release notes](https://github.com/tailhook/humantime/releases)
- [Commits](chronotope/humantime@v1.0.0...v2.0.0)

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

Author: dependabot-preview[bot]

examples/performance/Cargo.toml

@@ -9,7 +9,7 @@ crate-type = ["cdylib"]
 
 [dependencies]
 wasm-bindgen = "0.2.63"
-humantime = "1"
+humantime = "2"
 
 [dependencies.web-sys]
 version = "0.3.4"