fix(deps): update dependency handlebars to v4.7.7 - autoclosed

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
handlebars (source)	4.7.6 -> 4.7.7

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Release Notes

wycats/handlebars.js

### [`v4.7.7`](https://togithub.com/wycats/handlebars.js/blob/master/release-notes.md#v477---February-15th-2021) [Compare Source](https://togithub.com/wycats/handlebars.js/compare/v4.7.6...v4.7.7) - fix weird error in integration tests - [`eb860c0`](https://togithub.com/wycats/handlebars.js/commit/eb860c0) - fix: check prototype property access in strict-mode ([#​1736](https://togithub.com/wycats/handlebars.js/issues/1736)) - [`b6d3de7`](https://togithub.com/wycats/handlebars.js/commit/b6d3de7) - fix: escape property names in compat mode ([#​1736](https://togithub.com/wycats/handlebars.js/issues/1736)) - [`f058970`](https://togithub.com/wycats/handlebars.js/commit/f058970) - refactor: In spec tests, use expectTemplate over equals and shouldThrow ([#​1683](https://togithub.com/wycats/handlebars.js/issues/1683)) - [`77825f8`](https://togithub.com/wycats/handlebars.js/commit/77825f8) - chore: start testing on Node.js 12 and 13 - [`3789a30`](https://togithub.com/wycats/handlebars.js/commit/3789a30) (POSSIBLY) BREAKING CHANGES: - the changes from version [4.6.0](https://togithub.com/handlebars-lang/handlebars.js/blob/master/release-notes.md#v460---january-8th-2020) now also apply in when using the compile-option "strict: true". Access to prototype properties is forbidden completely by default, specific properties or methods can be allowed via runtime-options. See [#​1633](https://togithub.com/wycats/handlebars.js/issues/1633) for details. If you are using Handlebars as documented, you should not be accessing prototype properties from your template anyway, so the changes should not be a problem for you. Only the use of undocumented features can break your build. That is why we only bump the patch version despite mentioning breaking changes. [Commits](https://togithub.com/wycats/handlebars.js/compare/v4.7.6...v4.7.7)

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