Add workflow dispatch to update version tags (#326)

* Add workflow_dispatch to update-version-tags

* Add dummy (?) input

I hate YAML so much

.github/workflows/update-ts-version-tags.yml

@@ -5,6 +5,12 @@ name: Update ts* tags for ATA
 
 # For production
 on:
+  workflow_dispatch:
+    inputs:
+      checkout:
+        description: ref to deploy
+        required: true
+        default: master
   schedule:
     # https://crontab.guru/#5_8_*_*_1
     - cron: "5 8 * * 1"
@@ -15,6 +21,8 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - uses: actions/setup-node@v2
+      with:
+        node-version: '14'
     - name: retag
       run: |
         git clone --depth 1 https://github.com/DefinitelyTyped/DefinitelyTyped ../DefinitelyTyped