v2.2.1

What's Changed

• Add index cases by @ThreadDao in #363
• Add query test cases by @ThreadDao in #367
• Add flush and delete cases by @ThreadDao in #370
• Add collection partition load release case and L0 L3 tag by @ThreadDao in #376
• Remove tests dir and update ci job and nightly job by @ThreadDao in #383
• Add GetLoadingProgress, GetLoadState, GetVersion interface by @wayblink in #388
• [2.2.x] Add Resource Group API by @congqixia in #416

Full Changelog: v2.2.0...v2.2.1