Update availability percentage calculation for expansion lookups

[mohit-s96]

We use the proper expanded counts for expansion fields:

reso-certification-etl/lib/process-data-availability.js

Line 242 in a02515a

const availability = field?.frequency && count ? (1.0 * field.frequency) / count : 0.0;

but this needs to be updated for the expansion lookups as well:

reso-certification-etl/lib/process-data-availability.js

Line 393 in a02515a

lookupValue?.frequency && resourceCounts[resourceName] ? (1.0 * lookupValue.frequency) / resourceCounts[resourceName] : 0.0;

We should be using count that is calculated based on whether the field is an expansion or not:

reso-certification-etl/lib/process-data-availability.js

Line 241 in a02515a

const count = parentResourceName ? expandedResourcesCounts[parentResourceName]?.[resourceName] : resourceCounts[resourceName];

cc: @darnjo