v2.5.0-beta4

Features already present in v2.4 are release quality. Newly added functions require more fuzzing and docs.
IMPORTANT: Please view these release notes (esp. v2.5.0-beta) before upgrading from v2.4:

• v2.5.0-beta3 - Add Diagnose(), DiagnoseFirst(), UnmarshalFirst(), Wellformed().
• v2.5.0-beta2 - Bugfix and release notes include benchmark comparison of v2.5.0-beta2 vs v2.4.0.
• v2.5.0-beta - Notable improvements, optimizations, bugfixes, and 8 new contributors!

What's Changed Since v2.5.0-beta3

• Bump safer-golangci-lint to 1.52.2 by @x448 in #408
• Fix Diagnose() to return io.EOF error on empty data by @fxamacker in #410
• Update README.md for cbor v2.5.0-beta4 by @fxamacker in #411

Full Changelog: v2.5.0-beta3...v2.5.0-beta4