[chore] Prepare v0.38.2 release #4006

Job	Run time
changes	8s
validate-markdown	15s
get-test-cases	9s
create-test-ref	1s
build	19m 59s
build-windows	23m 37s
packaging-msi	2m 17s
packaging-rpm	44s
packaging-deb	27s
run-test-case (statsd_mock)	2m 25s
run-test-case (otlp_metric_mock)	2m 36s
run-test-case (otlp_mock)	2m 16s
run-test-case (otlp_grpc_exporter_metric_mock)	2m 14s
run-test-case (otlp_grpc_exporter_trace_mock)	4m 32s
run-test-case (otlp_http_exporter_metric_mock)	2m 8s
run-test-case (otlp_http_exporter_trace_mock)	2m 34s
run-test-case (sapm_exporter_trace_mock)	2m 29s
run-test-case (signalfx_exporter_metric_mock)	2m 0s
run-test-case (datadog_exporter_metric_mock)	9m 53s
run-test-case (datadog_exporter_trace_mock)	5m 26s
run-test-case (prometheus_mock)	2m 45s
run-test-case (zipkin_mock)	2m 30s
run-test-case (jaeger_mock)	2m 33s
run-test-case (logzio_exporter_trace_mock)	2m 43s
test-control-stript	11s
	1h 36m 52s

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