Add (rudimentary) handling of delta too big...i.e. don't send it.

A more advanced version could e.g. split an attribute,
or skip an attribute. But I can't see a useful case for this
now. This change however does have a real world use case
in that we currently hard code a max limit that is way lower
just to be safe.

BUG=webrtc:42225723

Change-Id: I9ec751514089eb8774d0deec85926c6130040cc9
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/451681
Reviewed-by: Sameer Vijaykar <samvi@google.com>
Commit-Queue: Jonas Oreland <jonaso@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#46975}