Update dependency handlebars to v4.7.4

[dev-mend-for-github-com]

This PR contains the following updates:

Package	Type	Update	Change
handlebars (source)	dependencies	minor	4.0.10 -> 4.7.4

By merging this PR, the issue #2 will be automatically resolved and closed:

Severity	CVSS Score	CVE
High	9.8	CVE-2019-19919
High	9.8	CVE-2021-23369
High	9.8	CVE-2021-23383
High	8.1	CVE-2019-20920
High	8.1	WS-2019-0333
High	7.5	CVE-2019-20922
High	7.5	WS-2019-0318
High	7.5	WS-2019-0492
High	7.5	WS-2019-0493
High	7.3	WS-2019-0064
Medium	5.6	CVE-2020-7598
Medium	5.6	WS-2019-0103
Medium	5.0	WS-2019-0331
Medium	5.0	WS-2019-0332

---

• If you want to rebase/retry this PR, click this checkbox. ⚠ Warning: custom changes will be lost.

[dev-mend-for-github-com]

Autoclosing Skipped

This PR has been flagged for autoclosing. However, it is being skipped due to the branch being already modified. Please close/delete it manually or report a bug if you think this is in error.