Bump jettison from 1.3.4 to 1.5.4 in /content/examples/polling-parent

Bumps [jettison](https://github.com/jettison-json/jettison) from 1.3.4 to 1.5.4.
- [Release notes](https://github.com/jettison-json/jettison/releases)
- [Commits](https://github.com/jettison-json/jettison/compare/jettison-1.3.4...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
tree: a96699904477a23f8ca92707cba81dab11a1863c
  1. cgi-bin/
  2. content/
  3. generators/
  4. lib/
  5. templates/
  6. README.adoc