Bump integrations/github from 4.4.0 to 4.15.1

Bumps [integrations/github](https://github.com/integrations/terraform-provider-github) from 4.4.0 to 4.15.1.
- [Release notes](https://github.com/integrations/terraform-provider-github/releases)
- [Changelog](https://github.com/integrations/terraform-provider-github/blob/main/CHANGELOG.md)
- [Commits](integrations/terraform-provider-github@v4.4.0...v4.15.1)

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

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

Author: dependabot[bot]