Configure SAST in `.gitlab-ci.yml`, creating this file if it does not already exist

See merge request cestoliv/cestmaddy!6

NPM(deps): Bump mime from 2.6.0 to 3.0.0

See merge request cestoliv/cestmaddy!5

# Conflicts:
#   package.json

NPM(deps): Bump highlight.js from 10.7.3 to 11.5.1

See merge request cestoliv/cestmaddy!3

NPM(deps): Bump grunt-contrib-cssmin from 3.0.0 to 4.0.0

See merge request cestoliv/cestmaddy!2

NPM(deps): Bump dotenv from 8.6.0 to 16.0.0

See merge request cestoliv/cestmaddy!1

NPM(deps): Bump marked from 2.1.3 to 4.0.15

See merge request cestoliv/cestmaddy!4

Bumps [mime](https://github.com/broofa/mime) from 2.6.0 to 3.0.0.
- [Release notes](https://github.com/broofa/mime/releases)
- [Changelog](https://github.com/broofa/mime/blob/main/CHANGELOG.md)
- [Commits](https://github.com/broofa/mime/compare/v2.6.0...v3.0.0)

Bumps [marked](https://github.com/markedjs/marked) from 2.1.3 to 4.0.15.
- [Release notes](https://github.com/markedjs/marked/releases)
- [Changelog](https://github.com/markedjs/marked/blob/master/.releaserc.json)
- [Commits](https://github.com/markedjs/marked/compare/v2.1.3...v4.0.15)

Bumps [highlight.js](https://github.com/highlightjs/highlight.js) from 10.7.3 to 11.5.1.
- [Release notes](https://github.com/highlightjs/highlight.js/releases)
- [Changelog](https://github.com/highlightjs/highlight.js/blob/11.5.1/CHANGES.md)
- [Commits](https://github.com/highlightjs/highlight.js/compare/10.7.3...11.5.1)

Bumps [grunt-contrib-cssmin](https://github.com/gruntjs/grunt-contrib-cssmin) from 3.0.0 to 4.0.0.
- [Release notes](https://github.com/gruntjs/grunt-contrib-cssmin/releases)
- [Changelog](https://github.com/gruntjs/grunt-contrib-cssmin/blob/main/CHANGELOG)
- [Commits](https://github.com/gruntjs/grunt-contrib-cssmin/compare/v3.0.0...v4.0.0)

Bumps [dotenv](https://github.com/motdotla/dotenv) from 8.6.0 to 16.0.0.
- [Release notes](https://github.com/motdotla/dotenv/releases)
- [Changelog](https://github.com/motdotla/dotenv/blob/master/CHANGELOG.md)
- [Commits](https://github.com/motdotla/dotenv/compare/v8.6.0...v16.0.0)