Merge pull request kubernetes-sigs#8873 from killianmuldoon/pr-fix-always-build

🐛 Ensure ALWAYS_BUILD_KIND_IMAGES is defaulted correctly in ci script

Author: k8s-ci-robot

scripts/ci-e2e-lib.sh

@@ -101,6 +101,9 @@ k8s::resolveVersion() {
 kind::prepareKindestImage() {
   local version=$1
 
+  # ALWAYS_BUILD_KIND_IMAGES will default to false if unset.
+  ALWAYS_BUILD_KIND_IMAGES="${ALWAYS_BUILD_KIND_IMAGES:-"false"}"
+
   # Try to pre-pull the image
   kind::prepullImage "kindest/node:$version"