[Snyk] Upgrade js-cookie from 2.1.4 to 2.2.1

[snyk-bot]

Snyk has created this PR to upgrade js-cookie from 2.1.4 to 2.2.1.

:sparkles: Snyk has automatically assigned this pull request, set who gets assigned.

:information_source: Keep your dependencies up-to-date. This makes it easier to fix existing vulnerabilities and to more quickly identify and fix newly disclosed vulnerabilities when they affect your project.

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• The recommended version is 2 versions ahead of your current version.
• The recommended version was released a year ago, on 2019-08-06.

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[coveralls]

Coverage remained the same at 94.483% when pulling f13a23844eaaab73fb1d27c21d21324a17be1a51 on snyk-upgrade-d440a5ab3e445fefcc6684cf5de7ad43 into 9e9b70b1c2839069c4363bab812c8c17db721cb8 on master.