Try to set it like woodpecker format

.woodpecker.yml

@@ -22,8 +22,8 @@ steps:
   - name: create-cloudflare-cname
     image: alpine:latest
     environment:
-      - CLOUDFLARE_TOKEN
-      - CLOUDFLARE_ZONE_ID
+      CLOUDFLARE_TOKEN: ${CLOUDFLARE_TOKEN}
+      CLOUDFLARE_ZONE_ID: ${CLOUDFLARE_ZONE_ID}
     commands:
       - apk add curl jq
       - echo "🌐 Creating CNAME for grafana-int.dvirlabs.com"