ESQL: Fix a test oom (elastic#124685)

The test was generating too much data

Closes elastic#124330

Author: nik9000

x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/expression/function/aggregate/ValuesTests.java

@@ -56,8 +56,8 @@ public static Iterable<Object[]> parameters() {
             // For spatial types, we can have many rows for points, but reduce rows for shapes to avoid circuit breaker
             MultiRowTestCaseSupplier.geoPointCases(1, 1000, MultiRowTestCaseSupplier.IncludingAltitude.NO),
             MultiRowTestCaseSupplier.cartesianPointCases(1, 1000, MultiRowTestCaseSupplier.IncludingAltitude.NO),
-            MultiRowTestCaseSupplier.geoShapeCasesWithoutCircle(1, 100, MultiRowTestCaseSupplier.IncludingAltitude.NO),
-            MultiRowTestCaseSupplier.cartesianShapeCasesWithoutCircle(1, 100, MultiRowTestCaseSupplier.IncludingAltitude.NO)
+            MultiRowTestCaseSupplier.geoShapeCasesWithoutCircle(1, 20, MultiRowTestCaseSupplier.IncludingAltitude.NO),
+            MultiRowTestCaseSupplier.cartesianShapeCasesWithoutCircle(1, 20, MultiRowTestCaseSupplier.IncludingAltitude.NO)
         ).flatMap(List::stream).map(ValuesTests::makeSupplier).collect(Collectors.toCollection(() -> suppliers));
 
         return parameterSuppliersFromTypedDataWithDefaultChecksNoErrors(suppliers, false);