Fix input frame release timing in BitmapToHardwareBufferProcessor

Previously, the input frame was eagerly released as soon as the
HardwareBuffer frame was emitted. This broke upstream backpressure
and prematurely freed resources while the downstream pipeline was
still processing the output buffer.

This causes all the frames for a bitmap to be queued almost instantly

This change defers releasing the input frame by chaining it inside the
output frame's release callback, ensuring the input frame is only
released when the downstream consumer finishes using it.

PiperOrigin-RevId: 948616809
(cherry picked from commit eff29f0b58158b6db4d36fdfebc07306eb8d0fcf)