Bump serve-static from 1.14.2 to 1.15.0
Bump serve-static from 1.14.2 to 1.15.0

Bumps [serve-static](https://github.com/expressjs/serve-static) from 1.14.2 to 1.15.0.
- [Release notes](https://github.com/expressjs/serve-static/releases)
- [Changelog](https://github.com/expressjs/serve-static/blob/master/HISTORY.md)
- [Commits](https://github.com/expressjs/serve-static/compare/v1.14.2...v1.15.0)

---
updated-dependencies:
- dependency-name: serve-static
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
openlayers/openlayers,stweil/openlayers,ahocevar/openlayers,bjornharrtell/ol3,bjornharrtell/ol3,ahocevar/openlayers,oterral/ol3,oterral/ol3,ahocevar/openlayers,stweil/openlayers,openlayers/openlayers,bjornharrtell/ol3,openlayers/openlayers,oterral/ol3,stweil/openlayers