Update sentry-sdk requirement from >=2.14.0 to >=2.60.0 in /backend

Updates the requirements on [sentry-sdk](https://github.com/getsentry/sentry-python) to permit the latest version.
- [Release notes](https://github.com/getsentry/sentry-python/releases)
- [Changelog](https://github.com/getsentry/sentry-python/blob/master/CHANGELOG.md)
- [Commits](getsentry/sentry-python@2.14.0...2.60.0)

---
updated-dependencies:
- dependency-name: sentry-sdk
  dependency-version: 2.60.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

backend/pyproject.toml

@@ -58,7 +58,7 @@ dependencies = [
     "django-ordered-model==3.5",
     "uwsgi==2.0.30",
     "django-storages==1.14.4",
-    "sentry-sdk>=2.14.0",
+    "sentry-sdk>=2.60.0",
     "boto3==1.43.9",
     "pycountry<20.0,>=19.8",
     "countries<1.0.0,>=0.2.0",