Rename container and release-container to images and release-image

ci/steps/release-packages.sh

@@ -4,7 +4,7 @@ set -euo pipefail
 main() {
   cd "$(dirname "$0")/../.."
 
-  if [[ "$OSTYPE" == darwin* ]]; then
+  if [[ $OSTYPE == darwin* ]]; then
     curl -L https://nodejs.org/dist/v14.4.0/node-v14.4.0-darwin-x64.tar.gz | tar -xz
     PATH="$PATH:node-v14.4.0-darwin-x64/bin"
   fi