fix: remove conditional requiring 'items' for path arg to get count

[CoreyKovalik]

Types of changes

Using the context.graphback.Model.findBy method should not require a path arg to get the count back.

requestedCount was returning false always if "items" was not passed as an argument to findBy in a custom resolver.

// would not return count, even if requested
await context.graphback.Model.findBy(args, context, info);

// this was required to get count back, which doesn't make much sense
await context.graphback.Model.findBy(args, context, info, 'items');

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices apply)
• Other (please specify)

Checklist

• I have read the CONTRIBUTING document.
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

Verification

Tested manually with custom resolvers.

Further comments