Bump jszip from 3.4.0 to 3.7.1 in /src/composer

Bumps [jszip](https://github.com/Stuk/jszip) from 3.4.0 to 3.7.1.
- [Release notes](https://github.com/Stuk/jszip/releases)
- [Changelog](https://github.com/Stuk/jszip/blob/master/CHANGES.md)
- [Commits](https://github.com/Stuk/jszip/compare/v3.4.0...v3.7.1)

---
updated-dependencies:
- dependency-name: jszip
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

src/composer/package-lock.json

@@ -6811,9 +6811,9 @@
       }
     },
     "jszip": {
-      "version": "3.4.0",
-      "resolved": "https://registry.npmjs.org/jszip/-/jszip-3.4.0.tgz",
-      "integrity": "sha512-gZAOYuPl4EhPTXT0GjhI3o+ZAz3su6EhLrKUoAivcKqyqC7laS5JEv4XWZND9BgcDcF83vI85yGbDmDR6UhrIg==",
+      "version": "3.7.1",
+      "resolved": "https://registry.npmjs.org/jszip/-/jszip-3.7.1.tgz",
+      "integrity": "sha512-ghL0tz1XG9ZEmRMcEN2vt7xabrDdqHHeykgARpmZ0BiIctWxM47Vt63ZO2dnp4QYt/xJVLLy5Zv1l/xRdh2byg==",
       "dev": true,
       "requires": {
         "lie": "~3.3.0",