test(jindofsx): migrate dataset_test.go to Ginkgo/Gomega (#5612)

* test(jindofsx): migrate dataset_test.go to Ginkgo/Gomega

Signed-off-by: Harsh <harshmastic@gmail.com>

* fix(pkg/ddc/jindofsx): use CacheStateList type in Gomega Equal matcher

Use common.CacheStateList instead of map[common.CacheStateName]string
in the Gomega Equal matcher to ensure type-strict comparison passes.

Signed-off-by: Harsh <harshmastic@gmail.com>

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Signed-off-by: Harsh <harshmastic@gmail.com>

Author: hxrshxz