150F/230F Dirt bike caliper moving slightly

Hi i have a 2016 Honda CRF230F and recently while i was cleaning out the brakes i noticed that the front caliper was moving up and down as well as squeaking quite a lot . I know that the caliper is supposed to sideways to allow the disc to realign, but i am not sure if it is supposed to be moving up and down. Any advice would be muchly appreciated.
Below is the link to a video which shows exactly what is happening on the bike.
https://www.youtube.com/watch?v=0CmplYuSaZE
 
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