Update retry delay multiplier in ExponentialBackoffRetryLogic

This fixes a bug in ExponentialBackoffRetryLogic and ensures that the retry delay works as expected.

Author: injectives

driver/src/main/java/org/neo4j/driver/internal/retry/ExponentialBackoffRetryLogic.java

@@ -45,7 +45,7 @@ public class ExponentialBackoffRetryLogic implements RetryLogic {
     public static final long DEFAULT_MAX_RETRY_TIME_MS = SECONDS.toMillis(30);
 
     private static final long INITIAL_RETRY_DELAY_MS = SECONDS.toMillis(1);
-    private static final double RETRY_DELAY_MULTIPLIER = 1;
+    private static final double RETRY_DELAY_MULTIPLIER = 2.0;
     private static final double RETRY_DELAY_JITTER_FACTOR = 0.2;
     private static final long MAX_RETRY_DELAY = Long.MAX_VALUE / 2;