[Improve][build] root's pom.xml don't need to manage all dependencies

[ashulin]

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Description

In the future, we will support multiple versions of the flink/spark engine, and version management will become an important issue.

seatunnel manages all dependencies in root's pom.xml, while many connectors require different versions of dependencies;
I expect to only manage basic core dependencies such as log4j, commons in root's pom.xml;
The dependencies of connectors and engines are managed by their modules;

Usage Scenario

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[liugddx]

e2e test need jdbc driver,Is it a direct dependency now? or add bom model?

[Hisoka-X]

@liugddx We will support add driver into e2e, track this: #2640