fix: cache next font during development to avoid FOUC (#60175)
In fact, this is an issue that has been solved in #52033, but it seems
#52492 introduced it again.
> During development, for fonts created via next/font the file path is
already containing the hash so we can always have them cached. This
fixes the problem of fonts causing FOUC in HMR.
Fixes #50782
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Co-authored-by: Tim Neutkens <tim@timneutkens.nl>
