Get rid of module gift

[bahmutov]

Which can fail badly in some cases when parsing commit message (pgp signature), while all we care is getting the current branch.

Probably have a method in deploy-bits that does that.

[bahmutov]

cypress-io/deploy-bits#1

[bahmutov]

Also update package-lock.json file because I see changes on ci

has document changes? true
  deploy getting current branch +1ms
  ggit git rev-parse --abbrev-ref HEAD +14ms
deploying branch master to environment production

Deploying to: docs.cypress.io

[20:30:47] [update] 404.html
[20:30:47] [update] build.json
[20:30:47] [skip]   index.html
[20:30:47] [update] page-sitemap.xml

Uncommited files:
- package-lock.json

Unhandled rejection Error: 
Cannot deploy master to production.
You must first commit these above files.

    at repo.statusAsync.then.status (/home/person/cypress-documentation/node_modules/@cypress/deploy-bits/src/check-branch-env-folder.js:33:13)