chore: Fix npx error (#650)

Integration testing run in the release build was failing.

See: aws/aws-sdk-js#3763

Author: seebees

codebuild/release/prod-release.yml

@@ -2,6 +2,7 @@ version: 0.2
 
 env:
   variables:
+    NPM_CONFIG_UNSAFE_PERM: true
     NODE_OPTIONS: "--max-old-space-size=4096"
     BRANCH: "master"
     # An explicit version bump