ci: bump node to version 15

Adam Hughes · Adam Hughes · commit 88c25e3ea49d · 2021-04-01T14:51:08.000-04:00
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:1.15
