fix(deps): bump serverful from 1.4.72 to 1.4.73

Bumps [serverful](https://github.com/hfreire/serverful) from 1.4.72 to 1.4.73.
- [Release notes](https://github.com/hfreire/serverful/releases)
- [Commits](hfreire/serverful@v1.4.72...v1.4.73)

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Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>