SWARM-1596: Upgrade Flyway to 4.2.0 (#654)
SWARM-1596: Upgrade Flyway to 4.2.0 (#654)

Motivation
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Upgrade Flyway to latest stable version.

Modifications
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build-parent pom.xml has been modified to hold the new versions.

Result
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Latest version of Flyway is used.
wildfly-swarm/wildfly-swarm-core,nelsongraca/wildfly-swarm,kenfinnigan/wildfly-swarm,wildfly-swarm/wildfly-swarm,juangon/wildfly-swarm,juangon/wildfly-swarm,nelsongraca/wildfly-swarm,wildfly-swarm/wildfly-swarm-core,wildfly-swarm/wildfly-swarm-core,wildfly-swarm/wildfly-swarm,juangon/wildfly-swarm,nelsongraca/wildfly-swarm,nelsongraca/wildfly-swarm,wildfly-swarm/wildfly-swarm,nelsongraca/wildfly-swarm,wildfly-swarm/wildfly-swarm-core,kenfinnigan/wildfly-swarm,juangon/wildfly-swarm,wildfly-swarm/wildfly-swarm,wildfly-swarm/wildfly-swarm,kenfinnigan/wildfly-swarm,juangon/wildfly-swarm,wildfly-swarm/wildfly-swarm-core,kenfinnigan/wildfly-swarm,kenfinnigan/wildfly-swarm