fix

.drone.yml

 - name: versioning
   image: node:12
   commands:
-  - PACKAGE_VERSION=$(cat ./package.json | grep version | head -1 | awk -F '{ print $2 }' | sed 's/[\",]//g' | tr -d '[[:space:]]')
-  - LATEST_VERSION=$(npm view rpclibrary | grep latest | head -1 | awk -F '{ print $2 }' | sed 's/[\",]//g' | tr -d '[[:space:]]')
+  - export PACKAGE_VERSION=$(cat ./package.json | grep version | head -1 | awk -F '{ print $2 }' | sed 's/[\",]//g' | tr -d '[[:space:]]')
+  - export LATEST_VERSION=$(npm view rpclibrary | grep latest | head -1 | awk -F '{ print $2 }' | sed 's/[\",]//g' | tr -d '[[:space:]]')
   - echo $PACKAGE_VERSION
   - echo $LATEST_VERSION
   - echo $DRONE_BUILD_CREATED