fix/config: merge env additional headers over config file headers - #1359

fix/config: merge env additional headers over config file headers#1359

BolajiOlajide merged 2 commits into

mainsourcegraph/src-cli:mainfrom

fix/config-additional-headers-env-overridesourcegraph/src-cli:fix/config-additional-headers-env-overrideCopy head branch name to clipboard