v0.8.108-nightly

What's Changed

Thoughtful Bug Fix 🔧

• fix(mysql): fix databend float64 to mysql double by @sandflee in #8745
• fix(query): the hashmap will cause oom by @TCeason in #8737
• fix: make explain pipeline go to correct path in cluster by @xudong963 in #8753

Code Refactor 🎉

• refactor(catalog): unify the catalog name defination to catalog_kind by @BohuTANG in #8742
• refactor(out format): move output_format_xxx.rs to a sub-folder. by @youngsofun in #8740
• refactor(expr): refine domain by @andylokandy in #8755

Full Changelog: v0.8.107-nightly...v0.8.108-nightly