Bump flyway-maven-plugin from 6.5.3 to 6.5.4
Bump flyway-maven-plugin from 6.5.3 to 6.5.4

Bumps [flyway-maven-plugin](https://github.com/flyway/flyway) from 6.5.3 to 6.5.4.
- [Release notes](https://github.com/flyway/flyway/releases)
- [Commits](https://github.com/flyway/flyway/compare/flyway-6.5.3...flyway-6.5.4)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
square/keywhiz,square/keywhiz,square/keywhiz