ci: bump node to v15

Adam Hughes · Adam Hughes · commit 323e1819401d · 2021-03-31T18:43:23.000Z
diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -6,7 +6,7 @@ orbs:
 executors:
   node:
     docker:
-      - image: node:14-slim
+      - image: node:15-slim
   golang:
     docker:
       - image: golang:1.16
