[SPARK-48348][SPARK-48376][FOLLOWUP][SQL] Replace parseScript with runSqlScript in SQL Scripting Interpreter test suite

### What changes were proposed in this pull request?
Previous [pull request](#47973) introduced new tests to `SqlScriptingInterpreterSuite` (among others) where accidentally `parseScript` was used instead of `runSqlScript`.
While the same exception would get thrown (since it happens in the parsing phase) it violates the consistency among the tests in this suite and adds unnecessary import, so it would be nice to change it.

### Why are the changes needed?
Changes are minor, they improve consistency among test suites for SQL scripting.

### Does this PR introduce _any_ user-facing change?
No.

### How was this patch tested?
This patch alters tests.

### Was this patch authored or co-authored using generative AI tooling?
No.

Closes #48016 from davidm-db/interpreter_test_suite_fix.

Authored-by: David Milicevic <[email protected]>
Signed-off-by: Max Gekk <[email protected]>

Author: davidm-db

sql/core/src/test/scala/org/apache/spark/sql/scripting/SqlScriptingInterpreterSuite.scala

@@ -20,7 +20,6 @@ package org.apache.spark.sql.scripting
 import org.apache.spark.SparkException
 import org.apache.spark.sql.{AnalysisException, DataFrame, Dataset, QueryTest, Row}
 import org.apache.spark.sql.catalyst.QueryPlanningTracker
-import org.apache.spark.sql.catalyst.parser.CatalystSqlParser.parseScript
 import org.apache.spark.sql.exceptions.SqlScriptingException
 import org.apache.spark.sql.test.SharedSparkSession
 
@@ -575,7 +574,7 @@ class SqlScriptingInterpreterSuite extends QueryTest with SharedSparkSession {
         |END""".stripMargin
     checkError(
       exception = intercept[SqlScriptingException] {
-        parseScript(sqlScriptText)
+        runSqlScript(sqlScriptText)
       },
       errorClass = "INVALID_LABEL_USAGE.ITERATE_IN_COMPOUND",
       parameters = Map("labelName" -> "LBL"))
@@ -614,7 +613,7 @@ class SqlScriptingInterpreterSuite extends QueryTest with SharedSparkSession {
         |END""".stripMargin
     checkError(
       exception = intercept[SqlScriptingException] {
-        parseScript(sqlScriptText)
+        runSqlScript(sqlScriptText)
       },
       errorClass = "INVALID_LABEL_USAGE.DOES_NOT_EXIST",
       parameters = Map("labelName" -> "RANDOMLBL", "statementType" -> "LEAVE"))
@@ -629,7 +628,7 @@ class SqlScriptingInterpreterSuite extends QueryTest with SharedSparkSession {
         |END""".stripMargin
     checkError(
       exception = intercept[SqlScriptingException] {
-        parseScript(sqlScriptText)
+        runSqlScript(sqlScriptText)
       },
       errorClass = "INVALID_LABEL_USAGE.DOES_NOT_EXIST",
       parameters = Map("labelName" -> "RANDOMLBL", "statementType" -> "ITERATE"))