amadeus/amadeus-trip-parser has invalid regex pattern

From what I can tell the pattern `[a-zA-Z]{1-70}` isn't valid. It should probably be `[a-zA-Z}{1,70}`.

https://github.com/APIs-guru/openapi-directory/blob/433a94f3e9e268f2b000b0b497785ede34332a7f/APIs/amadeus.com/amadeus-trip-parser/3.0.1/openapi.yaml#L326