fix windows npm cache issue

Author: kentcdodds

.github/workflows/validate.yml

@@ -26,9 +26,11 @@ jobs:
           node-version: 24
 
       - name: ▶️ Add repo
-        run:
-          npx --yes epicshop@latest add ${{ github.event.repository.name }}
-          ./workshop
+        run: |
+          npx --yes epicshop@latest add ${{ github.event.repository.name }} ./workshop
+        env:
+          # Kept getting npm ECOMPROMISED errors on windows. This fixed it.
+          npm_config_cache: ${{ runner.temp }}/npm-cache
 
       - name: ʦ TypeScript
         run: npm run typecheck