v0.2.3

Features

• post-judge callback (JacobLinCool)
• use box for wasm binary instead of cow (JacobLinCool)
• server log (JacobLinCool)
• support moka in-memory cache (JacobLinCool)
• early return if callback provided (JacobLinCool)

Performance Improvements

• improve concurrent testcase judge (JacobLinCool)

Chores

• bump to 0.2.3 (JacobLinCool)