[avalanche] Aggressively request compact proofs

Summary:
This diff makes the node request for the compact proofs more aggressively on a periodic manner:

• While no compact proofs has been received yet, request up to 3 peers randomly
• After a first compact proofs has been received, request all the peers

Test Plan:

ninja all check-all

Reviewers: #bitcoin_abc, sdulfari

Reviewed By: #bitcoin_abc, sdulfari

Subscribers: sdulfari

Differential Revision: https://reviews.bitcoinabc.org/D11666