docs: add performance & reliability section to v1.81.14 release notes#21950

ryan-crabbe merged 1 commit intoBerriAI:mainBerriAI/litellm:mainfrom

ryan-crabbe:docs/v1-81-14-perf-sectionryan-crabbe/litellm:docs/v1-81-14-perf-sectionCopy head branch name to clipboard