Bump pagerduty/pagerduty from 2.14.5 to 2.15.2 in /ops/global

Bumps [pagerduty/pagerduty](https://github.com/PagerDuty/terraform-provider-pagerduty) from 2.14.5 to 2.15.2.
- [Release notes](https://github.com/PagerDuty/terraform-provider-pagerduty/releases)
- [Changelog](https://github.com/PagerDuty/terraform-provider-pagerduty/blob/master/CHANGELOG.md)
- [Commits](PagerDuty/terraform-provider-pagerduty@v2.14.5...v2.15.2)

---
updated-dependencies:
- dependency-name: pagerduty/pagerduty
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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