add missing env variables

Author: medyo

.github/workflows/distribute.yml

@@ -24,7 +24,8 @@ on:
         type: boolean
 env:
   REACT_APP_BUILD_TARGET: 'extension'
-
+  REACT_APP_AMPLITUDE_URL: ${{ secrets.REACT_APP_AMPLITUDE_URL }}
+  REACT_APP_AMPLITUDE_KEY: ${{ secrets.REACT_APP_AMPLITUDE_KEY }}
 jobs:
   install-dependencies:
     needs: tag_version