[TRI-1795] Add $not to eventFilters

[matt-aitken]

EventFilters support lots of different nice matching, but they don't support not.

Add it to the schema:
https://github.com/triggerdotdev/trigger.dev/blob/main/packages/core/src/schemas/eventFilter.ts

Add the implementation:
https://github.com/triggerdotdev/trigger.dev/blob/main/packages/core/src/eventFilterMatches.ts

Add tests:
https://github.com/triggerdotdev/trigger.dev/blob/main/packages/core/test/eventFilterMatches.test.ts

_TRI-1795

[meetwithyash]

@matt-aitken , Please review my PR for adding $not to eventFilters.