Bump handlebars from 3.0.6 to 3.0.8

[dependabot]

Bumps handlebars from 3.0.6 to 3.0.8.

Changelog

Sourced from handlebars's changelog.

v3.0.8 - February 23rd, 2020

Bugfixes:

• backport some (but not all) of the security fixes from 4.x - 156061e

Compatibility notes:

• The properties __proto__, __defineGetter__, __defineSetter__ and __lookupGetter__ have been added to the list of "dangerous properties". If a property by that name is found and not an own-property of its parent, it will silently evaluate to undefined. This is done in both the compiled template and the "lookup"-helper. This will prevent Remote-Code-Execution exploits that have been published in npm advisories 1324 and 1316.
• The check for dangerous properties has been changed from "propertyIsEnumerable" to "hasOwnProperty", as it is now done in Handlebars 4.6.0 and later.

Security issues resolved:

• npm advisory 1324
• npm advisory 1316
• npm advisory 1325
• npm advisory 1164

Commits

v3.0.7 - June 30th, 2019

Security fixes:

• #1532 - Backport security fixes to 3.x branch (@​mattolson)

Housekeeping

• disable saucelabs-tests since the tunnel is not working - 95f33b1
• update grunt-saucelabs and aws dependency - 09aaa56
• fix package.json of components/handlebars.js repo - 7cf753b
• Fix Travis by updating git tag retrieval - 7c3944015d30a4348ae66ec1736b752cd864d5c1
• Use istanbul/lib/cli.js instead of node_modules/.bin/istanbul - 7820b207e123babd0bda0b4871790f2ea6b36b01

Tests:

• test: run appveyor tests in Node 10 - 420ac171a01b8777ebce0a777221754fcc72a5a8
• Fix build on Windows - 47adcda48530ab1504b8019fe17eaedd4f4c943f

Compatibility notes:

Access to class constructors (i.e. ({}).constructor) is now prohibited to prevent Remote Code Execution. This means that following construct will no work anymore:

class SomeClass {
}
</tr></table> 

... (truncated)

Commits

• 16bd606 v3.0.8
• 90ad8d9 Update release notes
• 156061e backport fixes from 4.x
• 8ba9159 update package-lock.json
• 55e4d9d v3.0.7
• bae88eb Update release notes
• c131bab chore: remove TODO comment from Gruntfile to enable clean build
• 95f33b1 chore: disable saucelabs-tests since the tunnel is not working
• 09aaa56 chore: update grunt-saucelabs and aws dependency
• 0d6d8c3 Merge pull request #1532 from mattolson/backport-security-fixes
• Additional commits viewable in compare view

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