chore(npm deps-dev): Bump @dfinity/identity from 2.1.3 to 2.2.0

Bumps [@dfinity/identity](https://github.com/dfinity/agent-js/tree/HEAD/packages/identity) from 2.1.3 to 2.2.0.
- [Release notes](https://github.com/dfinity/agent-js/releases)
- [Changelog](https://github.com/dfinity/agent-js/blob/main/docs/CHANGELOG.md)
- [Commits](https://github.com/dfinity/agent-js/commits/v2.2.0/packages/identity)

---
updated-dependencies:
- dependency-name: "@dfinity/identity"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -18,7 +18,7 @@
   ],
   "devDependencies": {
     "@dfinity/auth-client": "^2.1.3",
-    "@dfinity/identity": "^2.0.0",
+    "@dfinity/identity": "^2.2.0",
     "prettier": "^3.4.2",
     "prettier-plugin-organize-imports": "^4.1.0",
     "prettier-plugin-svelte": "^3.3.2"