JooqExceptionTranslator passes null exception to jOOQ when SQLException cannot be translated

[wilkinsona]

Rather than calling ExecuteContext(RuntimeException) with null, we shouldn't call jOOQ at all. This will lead to throwing the original SQLException wrapped in a jOOQ DataAccessException, just as if the JooqExceptionTranslator hadn't been configured.

See #25493 for further details.