Fix type issues

__tests__/scorecard.test.ts

@@ -0,0 +1,29 @@
+import {expect, jest, test} from '@jest/globals'
+import {Change, Changes, Scorecard} from '../src/schemas'
+import {getScorecardLevels} from '../src/scorecard'
+
+const npmChange: Change = {
+  manifest: 'package.json',
+  change_type: 'added',
+  ecosystem: 'npm',
+  name: 'type-is',
+  version: '1.6.18',
+  package_url: 'pkg:npm/[email protected]',
+  license: 'MIT',
+  source_repository_url: 'github.com/jshttp/type-is',
+  scope: 'runtime',
+  vulnerabilities: [
+    {
+      severity: 'critical',
+      advisory_ghsa_id: 'first-random_string',
+      advisory_summary: 'very dangerous',
+      advisory_url: 'github.com/future-funk'
+    }
+  ]
+}
+
+test('Can download data from deps.dev', async () => {
+  const changes: Changes = [npmChange]
+  const scorecard = await getScorecardLevels(changes)
+  expect(scorecard).not.toBeNull()
+})