Add missing kustomize dependency to toolbox image

toolbox/Containerfile

@@ -27,6 +27,7 @@ RUN dnf install --assumeyes \
   google-cloud-sdk-gke-gcloud-auth-plugin \
   jq \
   kubectl \
+  kustomize \
   libacl-devel \
   libffi-devel \
   libpq-devel \

toolbox/github-install.bash

@@ -10,10 +10,10 @@ function get_latest() {
 function do_install() {
     local name
     name="${1}"
-    
+
     local url
     url="${2}"
-    
+
     local working
     working=$(mktemp -d)
 
@@ -72,4 +72,4 @@ cosign=$(get_latest sigstore/cosign)
 do_install cosign "https://github.com/sigstore/cosign/releases/download/${cosign}/cosign-${cosign:1}-1.x86_64.rpm"
 
 codium=$(get_latest VSCodium/vscodium)
-do_install codium "https://github.com/VSCodium/vscodium/releases/download/${codium}/codium-${codium}-el8.x86_64.rpm"
+do_install codium "https://github.com/VSCodium/vscodium/releases/download/${codium}/codium-${codium}-el8.x86_64.rpm"