Bump bitpay/key-utils from 1.1.4 to 2.0.0

Bumps [bitpay/key-utils](https://github.com/bitpay/bitpay-php-keyutils) from 1.1.4 to 2.0.0.
- [Release notes](https://github.com/bitpay/bitpay-php-keyutils/releases)
- [Commits](bitpay/bitpay-php-keyutils@1.1.4...2.0.0)

---
updated-dependencies:
- dependency-name: bitpay/key-utils
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

composer.json

@@ -15,7 +15,7 @@
     "php": "^8.1 || ^8.2 || ^8.3",
     "ext-json": "*",
     "ext-reflection": "*",
-    "bitpay/key-utils": "^1.1",
+    "bitpay/key-utils": "^2.0",
     "guzzlehttp/guzzle": "^7.0",
     "symfony/yaml": "^5.4 || ^6.0 || ^7.0",
     "netresearch/jsonmapper": "^4.1",