Default SyncTimeout is 1000ms instead of 5000ms

[PhilippLauchner]

Hi all,
I think I stumbled across a minor bug:

The StackExchange.Redis.Extensions.Core.Configuration.RedisConfiguration's SyncTimeout is 1000ms by default.
However, it should be 5000ms acording to its documentation (and the StackExchange.Redis docs):

    /// <summary>
    /// Gets or sets the time in milliseconds that the system should allow for synchronous operations (defaults to 5 seconds).
    /// </summary>
    public int SyncTimeout
    {
        get => syncTimeout;

        set
        {
            syncTimeout = value;
            ResetConfigurationOptions();
        }
    }

I think the issue is the private int syncTimeout = 1000; initialization in the RedisConfiguration.cs:

StackExchange.Redis.Extensions/src/core/StackExchange.Redis.Extensions.Core/Configuration/RedisConfiguration.cs

Line 28 in 4aa17d1

private int syncTimeout = 1000;

Is it OK if I submit a PR for this quick fix?

Anyways, thanks a lot for your great work!