Bump symfony/debug-bundle from 5.4.39 to 5.4.40 in /modules/btcpay

Bumps [symfony/debug-bundle](https://github.com/symfony/debug-bundle) from 5.4.39 to 5.4.40.
- [Release notes](https://github.com/symfony/debug-bundle/releases)
- [Changelog](https://github.com/symfony/debug-bundle/blob/7.1/CHANGELOG.md)
- [Commits](symfony/debug-bundle@v5.4.39...v5.4.40)

---
updated-dependencies:
- dependency-name: symfony/debug-bundle
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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