fix

.drone.yml

   - echo ${PACKAGE_VERSION}
   - echo ${LATEST_VERSION}
   environment:
-    LATEST_VERSION=$(npm view rpclibrary | grep latest | head -1 | awk -F: '{ print $2 }' | sed 's/[\",]//g' | tr -d '[[:space:]]')
-    PACKAGE_VERSION=$(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:]]')
+    PACKAGE_VERSION:
+      $(cat package.json | grep version | head -1 | awk -F: '{ print $2 }' | sed 's/[\",]//g' | tr -d '[[:space:]]')
     GIT_USER:
       from_secret: git_user
     GIT_PASSWORD: