Bump go.opentelemetry.io/collector/featuregate from 1.0.0-rcv0017.0.20231026220224-6405e152a2d9 to 1.19.0 in /processor/spanmetricsprocessor

Bump go.opentelemetry.io/collector/featuregate from 1.0.0-rcv0017.0.20231026220224-6405e152a2d9 to 1.19.0 in /processor/spanmetricsprocessor #20181