chore(release): 8.13.0 [skip ci] # [8.13.0](https://github.com/amplitude/Amplitude-iOS/compare/v8.12.0...v8.13.0) (2022-09-08) ### Features * add ingestion_metadata field ([#410](https://github.com/amplitude/Amplitude-iOS/issues/410)) ([49e1126](https://github.com/amplitude/Amplitude-iOS/commit/49e1126213d4b4cc9010d1bf32e4dec3a2855698))