[Snyk] Security upgrade handlebars-loader from 1.7.1 to 1.7.3

[crew-security]

This PR was automatically created by Snyk using the credentials of a real user.

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.

#### Changes included in this PR - Changes to the following files to upgrade the vulnerable dependencies to a fixed version: - package.json - package-lock.json #### Vulnerabilities that will be fixed ##### With an upgrade: Severity | Priority Score (*) | Issue | Breaking Change | Exploit Maturity :-------------------------:|-------------------------|:-------------------------|:-------------------------|:-------------------------  | **713/1000**
**Why?** Proof of Concept exploit, Recently disclosed, Has a fix available, CVSS 6.4 | Prototype Pollution
[SNYK-JS-JSON5-3182856](https://snyk.io/vuln/SNYK-JS-JSON5-3182856) | No | Proof of Concept (*) Note that the real score may have changed since the PR was raised.

Commit messages

Package name: handlebars-loader

The new version differs by 23 commits.

• e678ba7 1.7.3
• 3f5b65f Update changelog with info about v1.7.3
• f44f590 Merge pull request #214 from pcardune/dependabot/npm_and_yarn/loader-utils-1.4.2
• 6f71645 Bump loader-utils from 1.0.4 to 1.4.2
• 8810606 Update mocha and sinon dev dependencies (#210)
• 373449e Update mocha and sinon dev dependencies
• 788a33c remove coveralls dev dependency (#209)
• f0e36e5 remove coveralls dev dependency
• 31eda1d Update links in README
• a4f23d1 Switch to github workflows in favor of travis-ci
• bf40145 Merge pull request #208 from pcardune/05-18-Install_prettier
• 07be695 Format all files with prettier
• 9212c70 Upgrade eslint and fix errors
• d2a9676 Install prettier
• 3ba94fc 1.7.2
• d83c593 Update changelog
• ec1bc23 update package async (#207)
• 2261622 update package async
• 144127f Merge pull request #197 from juliankrieger/master
• 06edb28 updated inlineRequire entry
• 9df1092 Merge pull request #178 from salbertson/patch-2
• 8db72fe Add a "Reviewed by Hound" badge
• 8cfcb2c Update changelog

See the full diff

Check the changes in this PR to ensure they won't cause issues with your project. ------------ **Note:** *You are seeing this because you or someone else with access to this repository has authorized Snyk to open fix PRs.* For more information: 🧐 [View latest project report](https://app.snyk.io/org/auth0-prodsec/project/2703ebb4-7849-41f3-97dc-fec53e31cee4?utm_source=github&utm_medium=referral&page=fix-pr) 🛠 [Adjust project settings](https://app.snyk.io/org/auth0-prodsec/project/2703ebb4-7849-41f3-97dc-fec53e31cee4?utm_source=github&utm_medium=referral&page=fix-pr/settings) 📚 [Read more about Snyk's upgrade and patch logic](https://support.snyk.io/hc/en-us/articles/360003891078-Snyk-patches-to-fix-vulnerabilities) [//]: # (snyk:metadata:{"prId":"3eafcd71-e070-4147-aea0-7955b36f69a9","prPublicId":"3eafcd71-e070-4147-aea0-7955b36f69a9","dependencies":[{"name":"handlebars-loader","from":"1.7.1","to":"1.7.3"}],"packageManager":"npm","projectPublicId":"2703ebb4-7849-41f3-97dc-fec53e31cee4","projectUrl":"https://app.snyk.io/org/auth0-prodsec/project/2703ebb4-7849-41f3-97dc-fec53e31cee4?utm_source=github&utm_medium=referral&page=fix-pr","type":"auto","patch":[],"vulns":["SNYK-JS-JSON5-3182856"],"upgrade":["SNYK-JS-JSON5-3182856"],"isBreakingChange":false,"env":"prod","prType":"fix","templateVariants":["updated-fix-title","priorityScore"],"priorityScoreList":[713]}) --- **Learn how to fix vulnerabilities with free interactive lessons:** 🦉 [Prototype Pollution](https://learn.snyk.io/lessons/prototype-pollution/javascript/?loc=fix-pr)