Bump @types/serve-static from 1.15.5 to 1.15.7 (#1074)

Bumps [@types/serve-static](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/serve-static) from 1.15.5 to 1.15.7.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/serve-static)

---
updated-dependencies:
- dependency-name: "@types/serve-static"
  dependency-type: indirect
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>