increase dss builder upload limits to 3mb

[jamestranovich-noaa]

What does this PR do? 🛠️

As per one of my weather story proposals, bump up the upload limit to 3M.

Before:

error: could not upload file: [{'title': 'Unprocessable Content', 'status': '422', 'detail': 'Unprocessable Entity: file validation failed.\nThe file is 2.76 MB exceeding the maximum file size of 2 MB.', 'links': {'via': {'href': 'http://localhost:8080/jsonapi/node/wfo_weather_story_upload/field_smallimage'}}}]

after:

error: could not upload file: [{'title': 'Unprocessable Content', 'status': '422', 'detail': 'Unprocessable Entity: file validation failed.\nThe file is 3.29 MB exceeding the maximum file size of 3 MB.', 'links': {'via': {'href': 'http://localhost:8080/jsonapi/node/wfo_weather_story_upload/field_smallimage'}}}]

What does the reviewer need to know? 🤔

Nada

[eric-gade]

LGTM 👍