[Security] Bump highcharts from 7.0.3 to 7.2.2 in /frontend

[dependabot-preview[bot]]

Bumps highcharts from 7.0.3 to 7.2.2. This update includes a security fix.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

Cross-Site Scripting in highcharts Versions of highcharts prior to 7.2.2 or 8.1.1 are vulnerable to Cross-Site Scripting (XSS). The package fails to sanitize href values and does not restrict URL schemes, allowing attackers to execute arbitrary JavaScript in a victim's browser if they click the link.

Affected versions: < 7.2.2

Commits

• 4e5c8c8 v7.2.2
• 865e21a v8.2.0
• 7f564e5 v8.1.2
• a20f9d6 v8.1.1
• a9ed457 v8.1.0
• 956cc50 Fixed nightly install docs as per review comments
• 0c9dfb9 Added documentation for installing nightly builds.
• a6aec8b v8.0.4
• 2c2d58a v8.0.3
• 7dcbb85 v8.0.2
• Additional commits viewable in compare view

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[dependabot-preview[bot]]

Superseded by #1488.