chore: add constants for prometheus translation (#32830) #13

Job	Run time
windows-unittest-matrix (receiver-0)	17m 23s
windows-unittest-matrix (receiver-1)	21m 18s
windows-unittest-matrix (receiver-2)	21m 32s
windows-unittest-matrix (receiver-3)	23m 2s
windows-unittest-matrix (processor-0)	16m 59s
windows-unittest-matrix (processor-1)	14m 38s
windows-unittest-matrix (exporter-0)	14m 0s
windows-unittest-matrix (exporter-1)	22m 3s
windows-unittest-matrix (exporter-2)	15m 36s
windows-unittest-matrix (exporter-3)	19m 45s
windows-unittest-matrix (extension)	17m 34s
windows-unittest-matrix (connector)	16m 59s
windows-unittest-matrix (internal)	19m 6s
windows-unittest-matrix (pkg)	12m 50s
windows-unittest-matrix (cmd-0)	20m 35s
windows-unittest-matrix (cmd-1)	16m 27s
windows-unittest-matrix (other)	24m 37s
windows-unittest	0s
	5h 14m 24s

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