Remove unneeded dep, add some npm scripts

.github/workflows/update.yml

@@ -14,13 +14,13 @@ jobs:
       uses: actions/checkout@v2
     - name: Fetch latest data
       run: |-
-        node update_blocklist.js
+        npm run update-blocklist
     - name: Generate todo.txt
       run: |-
-        comm -23 <(sort -u data/current.txt) <(awk -F= '{print $1}' data/identified.txt |sort -u) | sort -u > data/todo.txt
+        npm run update-todo
     - name: Generate merged.txt
       run: |-
-        node update_merged.js
+        npm run update-merged
     - name: Commit and push if it changed
       run: |-
         git config user.name "Automated"