fix(amazonq): make sure target JDK version is defined

[dhasani23]

Problem

Due to Java 21 support coming out, the target JDK version was no longer hardcoded as JDK17. So for SQL conversions, the target JDK was undefined and the startJob API was failing.

Solution

Hardcode JDK17 as a dummy target JDK so that we don't encounter an invalid request exception.

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