Consolidate remaining aggregation tests

Some tests separately calculate aggregations for value, anotherValue, and vector respectively. Refactor these tests into one test that calculates everything instead. Additionally, remove some redundant tests.

PiperOrigin-RevId: 825983979

Author: Differential Privacy Team

pipelinedp4j/tests/com/google/privacy/differentialprivacy/pipelinedp4j/api/BeamApiTest.kt

@@ -843,11 +843,11 @@ class BeamApiTest {
             "sumValue" to DoubleWithTolerance(value = 2.5, tolerance = 0.5),
             "meanValue" to DoubleWithTolerance(value = 0.83, tolerance = 0.5),
             // (1^2+(0.5)^2+1^2)/3-((1.0+0.5+1.0)/3)^2 = 0.0(5)
-            "varianceValue" to DoubleWithTolerance(value = 0.05, tolerance = 0.05),
+            "varianceValue" to DoubleWithTolerance(value = 0.05, tolerance = 0.1),
             "quantilesValue_0.5" to DoubleWithTolerance(value = 1.0, tolerance = 0.5),
             "sumAnotherValue" to DoubleWithTolerance(value = 4.5, tolerance = 0.5),
             "meanAnotherValue" to DoubleWithTolerance(value = 1.5, tolerance = 0.5),
-            "varianceAnotherValue" to DoubleWithTolerance(value = 1.16, tolerance = 0.05),
+            "varianceAnotherValue" to DoubleWithTolerance(value = 1.16, tolerance = 0.1),
             "quantilesAnotherValue_0.5" to DoubleWithTolerance(value = 2.0, tolerance = 0.5),
           ),
           mapOf(
@@ -928,11 +928,11 @@ class BeamApiTest {
             "cnt" to DoubleWithTolerance(value = 3.0, tolerance = 0.5),
             "sumValue" to DoubleWithTolerance(value = 2.5, tolerance = 0.5),
             "meanValue" to DoubleWithTolerance(value = 0.83, tolerance = 0.5),
-            "varianceValue" to DoubleWithTolerance(value = 0.05, tolerance = 0.05),
+            "varianceValue" to DoubleWithTolerance(value = 0.05, tolerance = 0.1),
             "quantilesValue_0.5" to DoubleWithTolerance(value = 1.0, tolerance = 0.5),
             "sumAnotherValue" to DoubleWithTolerance(value = 4.5, tolerance = 0.5),
             "meanAnotherValue" to DoubleWithTolerance(value = 1.5, tolerance = 0.5),
-            "varianceAnotherValue" to DoubleWithTolerance(value = 1.16, tolerance = 0.05),
+            "varianceAnotherValue" to DoubleWithTolerance(value = 1.16, tolerance = 0.1),
             "quantilesAnotherValue_0.5" to DoubleWithTolerance(value = 2.0, tolerance = 0.5),
           ),
           mapOf(