chore: update Node server SDK minimum to 9.12.1#21

devin-ai-integration[bot] wants to merge 2 commits into

mainlaunchdarkly/hello-node-server:mainfrom

devin/1783933763-update-node-sdklaunchdarkly/hello-node-server:devin/1783933763-update-node-sdkCopy head branch name to clipboard