fix: dbpool

[zextrasGiovanniDefacci]

No description provided.

[Copilot]

Pull request overview

Updates the test DB pool initialization to align with the newer Carbonio/Zimbra DB pool API and bumps the Carbonio dependency version used by the build.

Changes:

• Replace DbPool.startup() with DbPool.global() in the Zimbra test simulator DB initialization.
• Rework the test org.openzal.zal.db.DbPool helper from inheritance to a small delegating wrapper around com.zimbra.cs.db.DbPool.
• Bump carbonio.version from 4.27.12 to 4.27.14 in pom.xml.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
src/test/java/org/openzal/zal/mailbox/ZalZimbraSimulator.java	Updates HSQL test DB init to use the newer DbPool.global() initialization entrypoint.
src/test/java/org/openzal/zal/db/DbPool.java	Adjusts the test helper to delegate to the new DB pool API rather than extending the upstream class.
pom.xml	Updates the Carbonio dependency version property.

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