• Update the actix-web crate to version 4.3.0.
• Update the awc crate to version 3.1.0.
• Update the actix-http crate to version 3.3.0.
• Update the reqwest crate to version 0.11.14.
• Update the trust-dns-resolver crate to version 0.22.0.
• Update the trust-dns-proto crate to version 0.22.0.
• Update the base64 crate to version 0.21.0.
• Add a compat package for version 0.13 of the base64 crate.
• Update the zstd crate to version 0.12.3.
• Update the zstd-safe crate to version 6.0.4.
• Update the zstd-sys crate to version 2.0.7.
• Update the enum-as-inner crate to version 0.5.1.

This update also includes builds which port the mercurial Rust extension and the askalono, async-compression and below-store crates from version 0.11 of the zstd crate to version 0.12 (and from version 5 of the zstd-safe crate to version 6), which either required no code changes at all, or only very small code changes to adapt to minor API changes.