Fix unit tests

Signed-off-by: Andrew Carbonetto <andrew.carbonetto@improving.com>

Author: acarbonetto

ppl-spark-integration/src/test/scala/org/opensearch/flint/spark/ppl/PPLLogicalPlanJsonFunctionsTranslatorTestSuite.scala

@@ -209,7 +209,7 @@ class PPLLogicalPlanJsonFunctionsTranslatorTestSuite
     val jsonObjExp =
       Literal("""{"a":[{"b":1},{"c":2}]}""")
     val jsonFunc =
-      Alias(visit("json_delete", util.List.of(jsonObjExp, keysExpression)), "result")()
+      Alias(visit("json_set", util.List.of(jsonObjExp, keysExpression)), "result")()
     val eval = Project(Seq(UnresolvedStar(None), jsonFunc), table)
     val expectedPlan = Project(Seq(UnresolvedStar(None)), eval)
     comparePlans(expectedPlan, logPlan, false)