Fix namespace for longevity cronjob (nginx#1691)

Problem: The longevity test cronjob was attempting to patch the wrong namespace, resulting in a failure.

Solution: Update the namespace.

Author: miledxz

tests/scripts/vars.env-example

@@ -10,7 +10,7 @@ GKE_CLUSTER_REGION=<region where GKE cluster is deployed>
 GKE_PROJECT=<GCP project>
 GKE_SVC_ACCOUNT=<service account with k8s admin permissions>
 GKE_NODES_SERVICE_ACCOUNT=<service account for the GKE nodes to assume>
-IMAGE=projects/debian-cloud/global/images/debian-11-bullseye-v20231212
+IMAGE=projects/debian-cloud/global/images/debian-11-bullseye-v20240213
 NETWORK_TAGS=<network tags>
 NGF_REPO=nginxinc
 NGF_BRANCH=main

tests/suite/manifests/longevity/cronjob.yaml

@@ -53,7 +53,7 @@ spec:
                 -H "Authorization: Bearer $TOKEN" \
                 -H "Content-type: application/merge-patch+json" \
                 --data-raw "{\"spec\": {\"template\": {\"metadata\": {\"annotations\": {\"kubectl.kubernetes.io/restartedAt\": \"$RESTARTED_AT\"}}}}}" \
-                "https://kubernetes.default/apis/apps/v1/namespaces/default/deployments/coffee?fieldManager=kubectl-rollout" 2>&1
+                "https://kubernetes.default/apis/apps/v1/namespaces/longevity/deployments/coffee?fieldManager=kubectl-rollout" 2>&1
           restartPolicy: OnFailure
 ---
 apiVersion: batch/v1
@@ -82,5 +82,5 @@ spec:
                 -H "Authorization: Bearer $TOKEN" \
                 -H "Content-type: application/merge-patch+json" \
                 --data-raw "{\"spec\": {\"template\": {\"metadata\": {\"annotations\": {\"kubectl.kubernetes.io/restartedAt\": \"$RESTARTED_AT\"}}}}}" \
-                "https://kubernetes.default/apis/apps/v1/namespaces/default/deployments/tea?fieldManager=kubectl-rollout" 2>&1
+                "https://kubernetes.default/apis/apps/v1/namespaces/longevity/deployments/tea?fieldManager=kubectl-rollout" 2>&1
           restartPolicy: OnFailure