Bump go.opentelemetry.io/otel/metric from 1.16.0 to 1.19.0 in /processor/batchprocessor #765

Job	Run time
govulncheck	2m 10s
setup-environment	44s
checks	36s
lint	1m 42s
test-coverage	1m 53s
cross-build-collector (darwin, amd64)	17s
cross-build-collector (darwin, arm64)	20s
unittest (1.20)	1m 42s
cross-build-collector (linux, 386)	44s
unittest (1.19)	1m 24s
cross-build-collector (linux, amd64)	21s
cross-build-collector (linux, arm64)	32s
cross-build-collector (linux, ppc64le)	25s
cross-build-collector (linux, arm, 7)	26s
cross-build-collector (windows, 386)	18s
cross-build-collector (windows, amd64)	27s
	14m 1s

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