ci(CodeBuild): use n

Author: texastony

codebuild/nodejs16.yml

@@ -7,13 +7,7 @@ env:
 phases:
   install:
     commands:
-      - apt remove nodejs
-      - TO_REMOVE=$(which npm)
-      - rm $TO_REMOVE
-      - TO_REMOVE=$(which node)
-      - rm $TO_REMOVE
-      - curl -fsSL https://deb.nodesource.com/setup_16.x | bash -
-      - apt install -y nodejs
+      - n 16
       - node -v
       - npm -v
       - npm ci --unsafe-perm

codebuild/test_vectors/nodejs16.yml

@@ -8,16 +8,10 @@ env:
 phases:
   install:
     commands:
-      - apt remove nodejs
-      - TO_REMOVE=$(which npm)
-      - rm $TO_REMOVE
-      - TO_REMOVE=$(which node)
-      - rm $TO_REMOVE
-      - curl -fsSL https://deb.nodesource.com/setup_16.x | bash -
-      - apt install -y nodejs
+      - n 16
       - node -v
       - npm -v
-      - npm ci
+      - npm ci --unsafe-perm
       - npm run build
   build:
     commands: