Update semantic conventions to v1.33.0-dev#21

opentelemetrybot wants to merge 22 commits intomaintrask/opentelemetry.io:mainfrom

opentelemetrybot/semconv-integration-v1.33.0-devtrask/opentelemetry.io:opentelemetrybot/semconv-integration-v1.33.0-devCopy head branch name to clipboard