Keep native DateTime, Date and Time struct encoding

[imricardoramos]

Right now dates and times are encoded with the struct encoder which makes the logs be very verbose about dates (I'm using Grafana Loki to view logs and it makes it hard to parse visually):

%{level: :info, msg: {:string, "some message"}, meta: %{
  datetime: DateTime.utc_now(), 
  date: Date.utc_today(), 
  time: Time.utc_now
}}
|> LoggerJSON.Formatters.Basic.format(metadata: [:datetime, :date, :time]) 
|> IO.chardata_to_string()
|> Jason.decode! 
|> Jason.encode!(pretty: true) 
|> IO.puts 

{                                                                                                                                                           
  "message": "some message",                                                                                                                 
  "metadata": {                                                                                                                              
    "date": {                                                                                                                                
      "calendar": "Elixir.Calendar.ISO",                                                                                                     
      "day": 29,                                                                                                                             
      "month": 7,                                                                                                                            
      "year": 2024                                                                                                                           
    },                                                                                                                                       
    "datetime": {                                                                                                                            
      "calendar": "Elixir.Calendar.ISO",                                                                                                     
      "day": 29,                                                                                                                             
      "hour": 16,                                                                                                                            
      "microsecond": [                                                                                                                       
        744919,                                                                                                                              
        6                                                                                                                                    
      ],                                                                                                                                     
      "minute": 45,                                                                                                                          
      "month": 7,     
      "second": 0,           
      "std_offset": 0,
      "time_zone": "Etc/UTC",
      "utc_offset": 0,                 
      "year": 2024,                    
      "zone_abbr": "UTC"               
    },                                 
    "time": {                          
      "calendar": "Elixir.Calendar.ISO",                                      
      "hour": 16,                      
      "microsecond": [                 
        744951,                        
        6                              
      ],                               
      "minute": 45,                    
      "second": 0                      
    }                                  
  },                                   
  "severity": "info",                  
  "time": "2024-07-29T16:45:00.744Z"                                          
} 

I propose to keep those as-is and let them be encoded by their native Jason encoding. They don't present any sensitive data and therefore they don't need to be checked for redacted fields.

{                                                                                                                                                           
  "message": "some message",                                                                                                                                
  "metadata": {                                                                                                                                             
    "date": "2024-07-29",                                                                                                                                   
    "datetime": "2024-07-29T16:44:50.502282Z",                                                                                                              
    "time": "16:44:50.502331"                                                                                                                               
  },                                                                                                                                                        
  "severity": "info",                                                                                                                                       
  "time": "2024-07-29T16:44:50.502Z"                                                                                                                        
} 

[AndrewDryga]

Thank you!

[coveralls]

coverage: 100.0%. remained the same
when pulling ba2e014 on imricardoramos:fix-date-time-encoding
into 222e612 on Nebo15:master.

[AndrewDryga]

@imricardoramos can you please add a few tests that will cover newly added lines? See: https://coveralls.io/builds/68924173/source?filename=lib%2Flogger_json%2Fformatter%2Fredactor_encoder.ex#L35

They can be added here: https://github.com/Nebo15/logger_json/blob/master/test/logger_json/formatter/redactor_encoder_test.exs

[imricardoramos]

Done