[build] Fix handlebars warnings on yarn build

[mrseanryan]

yarn build

Handlebars: Access has been denied to resolve the property "hasComment" because it is not an "own property" of its parent.
You can add a runtime option to disable the check or this warning:
See https://handlebarsjs.com/api-reference/runtime-options.html#options-to-control-prototype-access for details
Handlebars: Access has been denied to resolve the property "hasGetterOrSetter" because it is not an "own property" of its parent.
You can add a runtime option to disable the check or this warning:
See https://handlebarsjs.com/api-reference/runtime-options.html#options-to-control-prototype-access for detail

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[PFight]

From version 4.6.0 on, Handlebars forbids accessing prototype properties and methods of the context object by default.

You should pass runtime property when run handlebars, or do something like:

npm i -D handlebars@4.5.0

Note, that this warning can cause great problems in result.