Perceiver interpolate position embedding (#30979)
* add test that currently fails
* test passed
* all perceiver passed
* fixup, style, quality, repo-consistency, all passed
* Apply suggestions from code review: default to False + compute sqrt once only
Co-authored-by: amyeroberts <22614925+amyeroberts@users.noreply.github.com>
* fix a minor bracket
* replace dim with self._num_channels
* add arguments to the rest preprocessors
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Co-authored-by: amyeroberts <22614925+amyeroberts@users.noreply.github.com>
