Bump jettison in /flex-maven-tools/flex-sdk-converter/converters/base

Bumps [jettison](https://github.com/jettison-json/jettison) from 1.3.1 to 1.5.4.
- [Release notes](https://github.com/jettison-json/jettison/releases)
- [Commits](https://github.com/jettison-json/jettison/compare/jettison-1.3.1...jettison-1.5.4)

---
updated-dependencies:
- dependency-name: org.codehaus.jettison:jettison
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
1 file changed