Release v0.13.0

Fixed

• Mempool: Inside the transaction and snark pool reducers, only broadcast locally injected transactions and producer snarks. Libp2p layer takes care of diffs received from gossip already.
• P2P: Don't forget the initial peers list.
• WebRTC connection leaks.
• zkApp transaction proofs are now verified on a separate thread.
• Sometimes produced blocks were broadcasted too early.
• OneOrTwo::zip never panics now, on failure it returns an error.

Changed

• On native, use jemalloc as the default allocator.
• Allocations reduced considerably by using stack-allocated bignums in the VRF evaluator.
• The same thread is now reused to verify all block proofs.
• RUST_BACKTRACE is always set to full now.