Try using curl

.drone.yml

@@ -30,7 +30,7 @@ steps:
   #     target: live-cli/${DRONE_BUILD_CREATED}-${DRONE_COMMIT}
 
   - name: Publish Artifacts
-    image: ubuntu
+    image: curlimages/curl
     volumes:
       - name: dist
         path: /dist
@@ -40,7 +40,7 @@ steps:
       GITEA_SVC_PASSWORD:
         from_secret: GITEA_SVC_PASSWORD
     commands:
-      - set -ex; cd /dist; for f in *; do curl --user "drone-svc:${GITEA_SVC_PASSWORD}" -X PUT https://gitea.example.com/api/packages/public/generic/${DRONE_REPO_NAME}/$(date -Isecond)-${DRONE_COMMIT}/${f}; done
+      - sh -c 'set -ex; cd /dist; for f in *; do curl --user "drone-svc:${GITEA_SVC_PASSWORD}" -X PUT https://gitea.example.com/api/packages/public/generic/${DRONE_REPO_NAME}/$(date -Isecond)-${DRONE_COMMIT}/${f}; done'
 
   - name: Publish release
     image: plugins/gitea-release