chore(deps): update circleci/node:8 docker digest to 72069ff

Author: renovate-bot

.circleci/config.yml

@@ -6,7 +6,7 @@ machine:
 jobs:
   build:
     docker:
-      - image: circleci/node:8@sha256:61294df1c260030197585680bb7fc2a8e5c2b5cc969d4c50f6cb0027d079199f
+      - image: circleci/node:8@sha256:72069ffd9cb1a2aac902b886a992fe712b62d25897e104303980785cf5bb25ca
       - image: circleci/mysql:8.0.3@sha256:ea4c062323a944b9152137a62f5b2c8b3d5e235d98af66675871506a1bf6cc6e
     environment:
       - NPM_CONFIG_LOGLEVEL: warn