Update jni requirement from 0.21 to 0.22

Updates the requirements on [jni](https://github.com/jni-rs/jni-rs) to permit the latest version.
- [Release notes](https://github.com/jni-rs/jni-rs/releases)
- [Changelog](https://github.com/jni-rs/jni-rs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jni-rs/jni-rs/compare/v0.21.0...v0.22.0)

---
updated-dependencies:
- dependency-name: jni
  dependency-version: 0.22.0
  dependency-type: direct:production
...

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

Cargo.toml

@@ -58,7 +58,7 @@ url = "2"
 
 [target.'cfg(target_os="android")'.dependencies]
 android_logger = "0.15"
-jni = { version = "0.21", default-features = false }
+jni = { version = "0.22", default-features = false }
 
 [target.'cfg(target_os="linux")'.dependencies]
 bincode = "2"