BCIP-7: Increase max_raw_request_count from 12 to 16

Context

The parameter max_raw_request_count sets the upper limit of how many external calls to datasource can a request make, limiting the number of sources that one request can include.

The Bandchain data ecosystems now have more data sources which can all be used to aggregate data results to secure a stronger integrity of the data request. But with the limit of max_raw_request_count a request can only currently call out to 12 sources.

The Band Protocol team proposes to increase the limit from 12 to 16 external calls per request. We think 16 is the number of sources that can strengthen the current requests without spamming data source execution on the validator's side.

Effects

Users/Developers: Able to create script and request more data sources to aggregate result.