[Security] Bump handlebars from 4.2.0 to 4.7.3

[dependabot-preview[bot]]

Bumps handlebars from 4.2.0 to 4.7.3. This update includes a security fix.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

High severity vulnerability that affects handlebars Versions of handlebars prior to 4.3.0 are vulnerable to Prototype Pollution leading to Remote Code Execution. Templates may alter an Object's proto and defineGetter properties, which may allow an attacker to execute arbitrary code through crafted payloads.

Affected versions: < 4.3.0

Changelog

Sourced from handlebars's changelog.

v4.7.3 - February 5th, 2020

Chore/Housekeeping:

• #1644 - Download links to aws broken on handlebarsjs.com - access denied (@Tea56)
• Fix spelling and punctuation in changelog - d78cc73

Bugfixes:

• Add Type Definition for Handlebars.VERSION, Fixes #1647 - 4de51fe
• Include Type Definition for runtime.js in Package - a32d05f

Compatibility notes:

• No incompatibilities are to be expected

Commits

v4.7.2 - January 13th, 2020

Bugfixes:

• fix: don't wrap helpers that are not functions - 9d5aa36, #1639

Chore/Build:

• chore: execute saucelabs-task only if access-key exists - a4fd391

Compatibility notes:

• No breaking changes are to be expected

Commits

v4.7.1 - January 12th, 2020

Bugfixes:

• fix: fix log output in case of illegal property access - f152dfc
• fix: log error for illegal property access only once per property - 3c1e252

Compatibility notes:

• no incompatibilities are to be expected.

Commits

v4.7.0 - January 10th, 2020

Features:

... (truncated)

Commits

• c978969 v4.7.3
• 9278f21 Update release notes
• d78cc73 Fixes spelling and punctuation
• 4de51fe Add Type Definition for Handlebars.VERSION, Fixes #1647
• a32d05f Include Type Definition for runtime.js in Package
• ad63f51 chore: add missing "await" in aws-s3 publishing code
• 586e672 v4.7.2
• f0c6c4c Update release notes
• a4fd391 chore: execute saucelabs-task only if access-key exists
• 9d5aa36 fix: don't wrap helpers that are not functions
• Additional commits viewable in compare view

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[dependabot-preview[bot]]

Superseded by #76.