Exchange an authorization code for tokens.
mix google.oauth.exchange --code CODE
mix google.oauth.exchange --code CODE --write-dcWith --write-dc, stores into direnv-config (no token printed):
secrets google.marketing.client_id
secrets google.marketing.client_secret
secrets google.marketing.refresh_tokenEnv: GOOGLE_CLIENT_ID, GOOGLE_CLIENT_SECRET (or GOOGLE_MARKETING_*).