Bump bom-2.204.x from 17 to 18
Bump bom-2.204.x from 17 to 18

Bumps [bom-2.204.x](https://github.com/jenkinsci/pom) from 17 to 18.
- [Release notes](https://github.com/jenkinsci/pom/releases)
- [Changelog](https://github.com/jenkinsci/pom/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jenkinsci/pom/commits)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
jenkinsci/ec2-plugin,jenkinsci/ec2-plugin,mkozell/ec2-plugin,jenkinsci/ec2-plugin,mkozell/ec2-plugin,jenkinsci/ec2-plugin,mkozell/ec2-plugin,mkozell/ec2-plugin