Zebra v1.0.0-alpha.3

Zebra's latest alpha brings multiple reliability and stability improvements for node startup, long-running syncs, and testing.

Some notable changes include:

Added

• Add beta rust to CI (#1725)
• Add Usability Testing Plan GitHub issue template (#1519)
• Add Release Checklist GitHub pull request template (#1717)

Changed

• Compute the network message body length to reduce heap allocations (#1773)
• Re-enable the macOS conflict acceptance tests (#1778)
• Re-enable coverage CI (#1758, #1787)
• Disable fail-fast in the CI test job (#1776)
• Rename responsible_disclosure.md to SECURITY.md (#1747)

Removed

• Disable unreliable testnet large sync test (#1789)

Fixed

Hangs and Panics

• Refactor connection.rs to make fail_with panics impossible (#1721)
• Stop ignoring failed peer addresses (#1709)
• Retry initial peer DNS resolution on failure (#1762)
• Update tower-batch semaphore implementation (#1764)
• Use ready! in ChainVerifier::poll_ready (#1735)
• Use CallAllUnordered in peer_set::add_initial_peers (#1734)

Testing

• Bump CI build and test timeouts to 60 minutes (#1757)
• Run CI workflow on push to main & manual request (#1748)
• Set ZEBRA_SKIP_NETWORK_TESTS using Windows syntax (#1782)
• Fix Windows build failures due to disk space (#1726)
• Fix acceptance test timeouts, cleanup, and diagnostics (#1736, #1766, #1770, #1777)

Logging and Metrics

• Update PeerSet metrics after every change (#1727)
• Log initial peer connection failures (#1763)