EmbeddedEndpointSetter test failing

[rgmz]

@mcastorina This test is failing; not sure why.

Edit: it looks like #3308 changed the logic in a way that subtly broke the test.

--- FAIL: TestEmbeddedEndpointSetter (0.00s)
    endpoint_customizer_test.go:12: 
                Error Trace:    /tmp/trufflehog/pkg/detectors/endpoint_customizer_test.go:12
                Error:          Not equal: 
                                expected: []string{"baz"}
                                actual  : []string(nil)
                                
                                Diff:
                                --- Expected
                                +++ Actual
                                @@ -1,4 +1,2 @@
                                -([]string) (len=1) {
                                - (string) (len=3) "baz"
                                -}
                                +([]string) <nil>
                                 
                Test:           TestEmbeddedEndpointSetter
FAIL

trufflehog/pkg/detectors/endpoint_customizer_test.go

Line 12 in bf6f313

assert.Equal(t, []string{"baz"}, s.Endpoints("baz"))

Originally posted by @rgmz in #3773 (comment)

---

Unclear whether the feature is broken or the test is broken.