dependabot-preview and airsquared Bump jna from 5.3.1 to 5.4.0
Bumps [jna](https://github.com/java-native-access/jna) from 5.3.1 to 5.4.0.
- [Release notes](https://github.com/java-native-access/jna/releases)
- [Changelog](https://github.com/java-native-access/jna/blob/master/CHANGES.md)
- [Commits](java-native-access/jna@5.3.1...5.4.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
Latest commit 10dc050 Jul 22, 2019