Add more testing

[arein]

Keyserver

• feat: write integration tests (tests written in JS like other services are recommended for simplicity)

History

• feat: re-enable integration tests (tests written in JS like other services are recommended for simplicity)

Services

• Keyserver to run Chat relevant Swift/Kotlin/JS (release branch) tests against history staging in CD
• History server to run Chat relevant Swift/Kotlin/JS (release branch) tests against history staging in CD

SDKs

• JS Chat SDK dev branch should run relevant tests against prod history
• Swift Chat SDK dev branch should run relevant tests against prod history
• Kotlin Chat SDK dev branch should run relevant tests against prod key server
• JS Chat SDK dev branch should run relevant tests against prod history
• Swift Chat SDK dev branch should run relevant tests against prod history
• Kotlin Chat SDK dev branch should run relevant tests against prod key server

Canary

• fix: Chat Canary has been broken for months