GuideRateDeclination is stuck at fixed value

Setting Telescope.GuideRateDeclination does not appear to be honored.  PyTest unit test output:

```
        d.GuideRateDeclnation = 0.002
>       assert d.GuideRateDeclination == 0.002     #BUGBUG? Stuck
E       assert 0.004178074616551509 == 0.002
E        +  where 0.004178074616551509 = <alpaca.telescope.Telescope object at 0x000002EF95608190>.GuideRateDeclination

```
