OONI Probe CLI v3.24.0-alpha

This is an alpha release for creating a branching point for the release/3.24 branch. As usual, this release includes both an OONI Probe CLI release and the corresponding release of the measurement engine, which is hosted by the same repository.

What's Changed

• chore: update internal version to v3.24.0-alpha by @DecFox in #1650
• fix(dnscheck): reinstate richer input loader by @DecFox in #1653
• Fix missing enabledByDefault in echcheck by @hellais in #1655
• Switch to using cloudflare-ech.com as the target for the ech test by @hellais in #1658
• refactor(oonimkall): expose the session close call by @DecFox in #1657
• Simplify the dnscheck list by @hellais in #1656
• feat: add fallback domain names for openvpn experiment by @ainghazal in #1654
• chore: upgrade psiphon to latest staging-client commit by @DecFox in #1659
• chore: upgrade GOVERSION to go1.22.2 by @DecFox in #1661
• chore: upgrade android NDKVERSION by @DecFox in #1662
• chore: upgrade dependencies by @DecFox in #1663
• chore: upgrade C dependencies by @DecFox in #1664
• fix: reset go version to 1.21 by @DecFox in #1666
• fix: update cdeps version for mobile tests by @DecFox in #1668
• chore: update assets and definitions by @DecFox in #1665
• fix: dnscheck default input test by @DecFox in #1669

Full Changelog: v3.23.0-alpha...v3.24.0-alpha