fix: upgrade gulp-connect from 5.5.0 to 5.7.0

Snyk has created this PR to upgrade gulp-connect from 5.5.0 to 5.7.0.

See this package in npm:
https://www.npmjs.com/package/gulp-connect

See this project in Snyk:
https://app.snyk.io/org/nexuscompute/project/61b026bd-7498-48dc-a9b7-72a021d779c3?utm_source=github&utm_medium=referral&page=upgrade-pr