Updated testcontainer dependency to 2.0.2

[rutven]

Updated testcontainers-bom dependency to version 2.0.2
Updated PostgreSQL dependency to testcontainers-postgresql

[Copilot]

Pull request overview

This PR updates the Testcontainers dependency from version 1.19.1 to 2.0.2, a major version upgrade that may include breaking changes.

• Updated testcontainers-bom from version 1.19.1 to 2.0.2
• Changed PostgreSQL module artifact ID from postgresql to testcontainers-postgresql

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[Copilot]

The artifact ID change from postgresql to testcontainers-postgresql is incorrect. In Testcontainers 2.x, the PostgreSQL module artifact ID remains postgresql, not testcontainers-postgresql. The correct dependency should be:

<artifactId>postgresql</artifactId>

The naming pattern testcontainers-<module> is used by other ecosystems (like .NET), but the Java Testcontainers library continues to use the simpler module names.

Suggested change

	<artifactId>testcontainers-postgresql</artifactId>
	<artifactId>postgresql</artifactId>