Bump go.opentelemetry.io/otel/metric from 1.16.0 to 1.19.0 in /processor/batchprocessor #709

Job	Run time
govulncheck	2m 14s
setup-environment	37s
checks	32s
lint	1m 32s
test-coverage	2m 6s
cross-build-collector (darwin, amd64)	19s
unittest (1.20)	1m 35s
cross-build-collector (darwin, arm64)	19s
unittest (1.19)	1m 17s
cross-build-collector (linux, 386)	32s
cross-build-collector (linux, amd64)	14s
cross-build-collector (linux, arm64)	15s
cross-build-collector (linux, ppc64le)	23s
cross-build-collector (linux, arm, 7)	20s
cross-build-collector (windows, 386)	25s
cross-build-collector (windows, amd64)	23s
	13m 3s

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