Update git.autistici.org/ai3/go-common digest to 39e01d3

vendor/go.opencensus.io/stats/view/export.go

vendor/go.opencensus.io/stats/view/view.go

vendor/go.opencensus.io/stats/view/view_to_metric.go

vendor/go.opencensus.io/stats/view/worker.go

vendor/go.opencensus.io/stats/view/worker_commands.go

vendor/go.opencensus.io/tag/key.go

vendor/go.opencensus.io/tag/map.go

vendor/go.opencensus.io/tag/map_codec.go

vendor/go.opencensus.io/tag/metadata.go

vendor/go.opencensus.io/trace/basetypes.go

vendor/go.opencensus.io/trace/config.go

vendor/go.opencensus.io/trace/doc.go

vendor/go.opencensus.io/trace/export.go

vendor/go.opencensus.io/trace/propagation/propagation.go

vendor/go.opencensus.io/trace/sampling.go

vendor/go.opencensus.io/trace/spanbucket.go

vendor/go.opencensus.io/trace/spanstore.go

vendor/go.opencensus.io/trace/status_codes.go

vendor/go.opencensus.io/trace/trace.go

vendor/go.opencensus.io/trace/tracestate/tracestate.go