v1.2.528-nightly

What's Changed

Exciting New Features ✨

• feat: parquet support option null_if by @youngsofun in #15776
• feat: rm CREDENTIALS as alias of CONNECTION. by @youngsofun in #15780
• feat(function): Implement map_delete function by @shamb0 in #15480
• feat(query): support try_to_timestmap(string, string), try_to_date(string, string) by @TCeason in #15775
• feat: add io delay chaos meta test scripts by @lichuang in #15769

Thoughtful Bug Fix 🔧

• fix: auto cast fail error in copy should show the related columns #15768 by @youngsofun in #15770

Code Refactor 🎉

• refactor: remove unsafe impl Send+Sync for GlobalRegistry by @drmingdrmer in #15782
• refactor: remove meta-service V001 data version by @drmingdrmer in #15778
• refactor(ast): eliminate clone when displaying expr by @zhang2014 in #15773

Others 📒

• chore: limit the count of set operation by @xudong963 in #15777
• chore: replace manually incr/decr with couter guard by @drmingdrmer in #15784
• chore(query): remove useless async keyword by @zhang2014 in #15781

Full Changelog: v1.2.527-nightly...v1.2.528-nightly