Use non-blocking SecureRandom in noisy aggregators

As a follow-up to #21290,
this one-line change ensures that the remaining noisy
aggregators (noisy_count_gaussian, noisy_count_if_gaussian,
noisy_avg_gaussian, noisy_sum_gaussian) all use a SecureRandom
provider that will not block and cause performance degradation.

presto-main/src/main/java/com/facebook/presto/operator/aggregation/noisyaggregation/NoisyCountAggregationUtils.java

@@ -15,8 +15,8 @@
 
 import com.facebook.presto.common.block.BlockBuilder;
 import com.facebook.presto.spi.PrestoException;
+import com.facebook.presto.util.SecureRandomGeneration;
 
-import java.security.SecureRandom;
 import java.util.Random;
 
 import static com.facebook.presto.common.type.BigintType.BIGINT;
@@ -71,7 +71,7 @@ public static void writeNoisyCountOutput(NoisyCountState state, BlockBuilder out
 
     public static double getNoise(NoisyCountState state)
     {
-        Random random = new SecureRandom();
+        Random random = SecureRandomGeneration.getNonBlocking();
         if (!state.isNullRandomSeed()) {
             random = new Random(state.getRandomSeed());
         }