feat(sources): add source latency metric and fix source lag time on large batches#24987

gwenaskell merged 10 commits intomastervectordotdev/vector:masterfrom

yoenn.burban/OPA-4855-add-source-latency-metricvectordotdev/vector:yoenn.burban/OPA-4855-add-source-latency-metricCopy head branch name to clipboard