False positive from array_constructor custom rule

[moayes]

https://github.com/raywenderlich/swift-style-guide/blob/88701838883776b8dafcbefff5120161dcd8c0c3/com.raywenderlich.swiftlint.yml#L56

The intent of the regex pattern in custom rule, array_constructor is to catch something like let foo = [String](), however, it's causing a false positive on a properly initialized array like let foo = [Bar()].