v0.6.5 Fix dot distance

What's Changed

• [Rust] Compute dot distance as negative dot product by @eddyxu in #1160
• fix: Scanner schema fix by @gsilvestrin in #1161
• implement flat vector index benchmark by @chebbyChefNEQ in #1163
• clean cached wheels by @wjones127 in #1159

Full Changelog: v0.6.4...v0.6.5