Update phonenumbers requirement from <8.14,>=8.12.48 to >=8.12.48,<9.1

Updates the requirements on [phonenumbers](https://github.com/daviddrysdale/python-phonenumbers) to permit the latest version.
- [Commits](daviddrysdale/python-phonenumbers@v8.12.48...v9.0.16)

---
updated-dependencies:
- dependency-name: phonenumbers
  dependency-version: 9.0.16
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pyproject.toml

@@ -230,7 +230,7 @@ dependencies = [
     "Jinja2 ==3.1.4",
     "jwcrypto ==1.5.6",
     "loguru ==0.7.2",
-    "phonenumbers >=8.12.48,<8.14",
+    "phonenumbers >=8.12.48,<9.1",
     "posthog >=3.0.1,<4",
     "postmarker ==1.0",
     "pydantic ==2.9.2",