[filestatsreceiver] Rename filestats_darwin.go to filestats_bsd.go To Fix Build Tag Issues #52120

Job	Run time
setup-environment	3m 29s
arm-unittest-matrix (receiver-1)	8m 24s
arm-unittest-matrix (processor-1)	4m 36s
arm-unittest-matrix (exporter-2)	4m 11s
arm-unittest-matrix (exporter-1)	9m 5s
arm-unittest-matrix (receiver-0)	6m 51s
arm-unittest-matrix (processor-0)	3m 44s
arm-unittest-matrix (exporter-3)	6m 3s
arm-unittest-matrix (internal)	9m 31s
arm-unittest-matrix (exporter-0)	3m 28s
arm-unittest-matrix (connector)	4m 51s
arm-unittest-matrix (cmd-0)	3m 12s
arm-unittest-matrix (extension)	7m 52s
arm-unittest-matrix (pkg)	5m 12s
arm-unittest-matrix (receiver-3)	6m 32s
arm-unittest-matrix (other)	5m 0s
arm-unittest-matrix (receiver-2)	9m 32s
arm-unittest	3s
flakytests-generate-issues	0s
	1h 41m 36s

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