[FR] Allow custom attributes on built-in traces via global attribute API#8031

jrodiz wants to merge 1 commit intofirebase:mainfirebase/firebase-android-sdk:mainfrom

jrodiz:feature/jrc-6664.Support.custom.attributes.in.fireperfjrodiz/firebase-android-sdk:feature/jrc-6664.Support.custom.attributes.in.fireperfCopy head branch name to clipboard