fix: base64 invalid input

.gitlab-ci.yml

@@ -202,10 +202,11 @@ destroy-psc:
     GCP_DNS_ZONE_GKE_ELASTIC: $GCP_DNS_ZONE_GKE_ELASTIC
     EC_SERVICE_ATTACHMENT_URI: $EC_SERVICE_ATTACHMENT_URI
     EC_DNS_ZONE: $EC_DNS_ZONE
+    GCP_SERVICE_ACCOUNT: $GCP_SA
   before_script:
-    - echo "$GCP_SA" | base64 -di > gcp-sa.json
+    - echo "$GCP_SERVICE_ACCOUNT" | base64 -di > gcp-sa.json
     - ls -la
-    - echo "$GCP_SA" | base64 -di > gcp-sa.json
+    - echo "$GCP_SERVICE_ACCOUNT" | base64 -di > gcp-sa.json
     - ls -la
     - gcloud auth activate-service-account --key-file gcp-sa.json
     - echo "Activate Service Account OK"