chore(deps-dev): bump testcontainers from 4.14.2 to 4.15.0

Bumps [testcontainers](https://github.com/testcontainers/testcontainers-python) from 4.14.2 to 4.15.0.
- [Release notes](https://github.com/testcontainers/testcontainers-python/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-python/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-python@testcontainers-v4.14.2...testcontainers-v4.15.0)

---
updated-dependencies:
- dependency-name: testcontainers
  dependency-version: 4.15.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]