build(deps): bump maven-enforcer-plugin from 3.0.0-M2 to 3.0.0-M3

Bumps [maven-enforcer-plugin](https://github.com/apache/maven-enforcer) from 3.0.0-M2 to 3.0.0-M3.
- [Release notes](https://github.com/apache/maven-enforcer/releases)
- [Commits](https://github.com/apache/maven-enforcer/compare/enforcer-3.0.0-M2...enforcer-3.0.0-M3)

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