v8.3.0

Feat

• add allowed environments to config endpoint (#1421)
• add colors for Ack and Shelved statuses (#1420)
• add syslog logging output format (#1417)

Fix

• remove redundant logging messages
• use string enumerated types where possible (#1419)
• add "X-Request-ID" as CORS header (#1418)
• add requestId to error responses (#1415)
• webhook: set alert status from action, not directly (#1409)
• mongodb: optional query for raw_data and history (#1408)
• postgres: optional query for raw_data and history (#1407)
• set alert heartbeat timeout from alert timeout

Perf

• db: Do not query for rawData or history if not required