chore(deps): update node:8.17.0 docker digest to ee25271

Author: renovate-bot

.circleci/config.yml

@@ -6,7 +6,7 @@ machine:
 jobs:
   build:
     docker:
-      - image: node:8.17.0@sha256:c4ea1d1f718962e98661a19f5bc2658e696a732a3f7e94ae2c79b93235bbc714
+      - image: node:8.17.0@sha256:ee25271e00572cb09d095f6b35880a284eac570c17452644bc67fd1d8dc7f9f7
       - image: mongo:3.7.9@sha256:fbc5b316430a970543d2e1668164c764977e777a74ffb05c873d0e5df499b6fb
       - image: redis:3.2.12@sha256:562e944371527d6e11d396fe43fde17c30e28c25c23561b2322db3905cbc71dd
     environment: