fix: cap VarCharType/VarBinaryType MAX_LENGTH at i32::MAX#339

JingsongLi merged 2 commits into

apache:mainapache/paimon-rust:mainfrom

shyjsarah:fix/varchar-max-length-overflowshyjsarah/paimon-rust:fix/varchar-max-length-overflowCopy head branch name to clipboard