Optimize test times a bit

StackExchange.Redis.Tests/MultiMaster.cs

@@ -48,7 +48,7 @@ public async Task DeslaveGoesToPrimary()
                 primary.MakeMaster(ReplicationChangeOptions.SetTiebreaker);
                 secondary.MakeMaster(ReplicationChangeOptions.None);
 
-                await Task.Delay(2000).ConfigureAwait(false);
+                await Task.Delay(100).ConfigureAwait(false);
 
                 primary.Ping();
                 secondary.Ping();
@@ -75,7 +75,7 @@ public async Task DeslaveGoesToPrimary()
                 primary.MakeMaster(ReplicationChangeOptions.Broadcast | ReplicationChangeOptions.EnslaveSubordinates | ReplicationChangeOptions.SetTiebreaker, Writer);
                 Writer.WriteLine("Finished MakeMaster() call.");
 
-                await Task.Delay(2000).ConfigureAwait(false);
+                await Task.Delay(100).ConfigureAwait(false);
 
                 Writer.WriteLine("Invoking Ping() (post-master)");
                 primary.Ping();

StackExchange.Redis.Tests/PubSubNonParallel.cs

@@ -75,7 +75,7 @@ public async Task SubscriptionsSurviveMasterSwitchAsync(bool useSharedSocketMana
                     subA.Ping();
                     subB.Ping();
                     Output.WriteLine("Pausing...");
-                    await Task.Delay(4000).ForAwait();
+                    await Task.Delay(6000).ForAwait();
 
                     Assert.True(a.GetServer(TestConfig.Current.MasterServerAndPort).IsSlave, $"{TestConfig.Current.MasterServerAndPort} should be a slave via a");
                     Assert.False(a.GetServer(TestConfig.Current.SlaveServerAndPort).IsSlave, $"{TestConfig.Current.SlaveServerAndPort} should be a master via a");