🍒 9935 - set unified service tags on llm obs span start#9988

gary-huang wants to merge 3 commits intorelease/v1.55.xDataDog/dd-trace-java:release/v1.55.xfrom

gary.huang/backport-pr-9935DataDog/dd-trace-java:gary.huang/backport-pr-9935Copy head branch name to clipboard