Update hyku to pull in default collection thumbnail fix

[ShanaLMoore]

Issue:

• https://github.com/scientist-softserv/adventist_knapsack/issues/886

ref:

• HYKU: https://github.com/samvera/hyku/pull/2381

When No Collection Branding is Set

When Default Collection Thumbnail is Set

• [ ] Collections should render the default thumbnail

When Default Collection Thumbnail is NOT set

• [ ] Collections should render Hyrax's default thumbnail

When Collection Branding is Set

When Default Collection Thumbnail is Set

• [ ] Collections should render the Branding thumbnail