Update dependency selfsigned to v2

This MR contains the following updates:

Package	Type	Update	Change
selfsigned	devDependencies	major	^1.10.7 -> ^2.0.0

---

Release Notes

jfromaniello/selfsigned

v2.0.0

Compare Source

---

Configuration

Schedule: "every weekend" (UTC).

Automerge: Disabled by config. Please merge this manually once you are satisfied.

Rebasing: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox.

Ignore: Close this MR and you won't be reminded about this update again.

---

• If you want to rebase/retry this MR, click this checkbox.

---

This MR has been generated by Renovate Bot.

packages/qr-code-scanner/package.json

@@ -32,7 +32,7 @@
     "rollup-plugin-delete": "^2.0.0",
     "rollup-plugin-serve": "^1.0.1",
     "rollup-plugin-terser": "^7.0.2",
-    "selfsigned": "^1.10.7"
+    "selfsigned": "^2.0.0"
   },
   "dependencies": {
     "@dbp-toolkit/common": "^0.2.2",