[Bug]: otio_reader.py using deprecated method

[markreidvfx]

What happened?

OpenTimeline v0.16.0+ changed the name of the following methods

clip_if() -> find_clips()
children_if -> find_children()

AcademySoftwareFoundation/OpenTimelineIO#1541

The otio plugin is using the old method name.

I think the only occurrence is here:

OpenRV/src/plugins/rv-packages/otio_reader/otio_reader.py

Line 284 in cebead2

for clip in tl.clip_if():

List all the operating systems versions where this is happening

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On what computer hardware is this happening?

n/a

Relevant console log output

No response

Environment variables

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Extra information

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