Use new cache key in main workflow

.github/workflows/import.yaml

@@ -18,9 +18,9 @@ jobs:
       - uses: actions/cache@v3
         with:
           path: data/wiki-meta-cache.yaml
-          key: wiki-meta-cache-${{ github.run_id }}
+          key: wiki-meta-cache-v2-${{ github.run_id }}
           restore-keys: |
-            wiki-meta-cache
+            wiki-meta-cache-v2
       - run: |
           npm install
           npm run recent

.github/workflows/set-timestamp.yaml

@@ -1,10 +1,10 @@
 on:
-  workflow_dispatch:
-    inputs:
-      timestamp:
-        description: 'Timestamp to inject into wiki-meta-cache.yaml. Example: 2022-10-30T19:37:23.138Z'
-        required: true
-        type: string
+  workflow_dispatch: ~
+    # inputs:
+    #   timestamp:
+    #     description: 'Timestamp to inject into wiki-meta-cache.yaml. Example: 2022-10-30T19:37:23.138Z'
+    #     required: true
+    #     type: string
 
 name: Set lastCheckedRecentChanges