[Snyk] Security upgrade mocha from 7.0.1 to 8.3.0

[AshleyWright]

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 :-------------------------:|-------------------------|:-------------------------|:-------------------------|:-------------------------  | **506/1000**
**Why?** Proof of Concept exploit, Has a fix available, CVSS 3.7 | Regular Expression Denial of Service (ReDoS)
[npm:debug:20170905](https://snyk.io/vuln/npm:debug:20170905) | Yes | Proof of Concept (*) Note that the real score may have changed since the PR was raised.

Commit messages

Package name: mocha

The new version differs by 194 commits.

• e1194ab Release v8.3.0
• 9e75153 update CHANGELOG for v8.3.0 [ci skip]
• 6dd12be match supporter's properties with supporter.js (#4569)
• 9f2dd41 docs: add example of generating tests with a closure (#4494)
• 9122909 Adds BigInt support to stringify util function (#4112)
• 9878f32 Add file location when SyntaxError happens in ESM (#4557)
• 84d0c96 Deps: update workerpool (#4566)
• 3c2f82f GH actions: purge-expired-artifacts.yml (#4565)
• 1a05ad7 chore(deps): upgrade all to latest stable (#4556)
• c667d10 docs: fix javascript syntax errors (#4555)
• 6eb3c3c Update dependencies yargs and yargs-parser (#4543)
• 30d5b66 Fix workflow filter on pull-request event (#4550)
• 6bcb89e Improve CI tests workflow (#4547)
• c21a90f Fix present year in LICENSE (#4542)
• c3c976b fixes require path
• bc8ce05 add test for this.test.error() behavior in "after each" hooks
• 78a41d1 Add GH Actions workflow status badge (#4503)
• c6856ba add error code for test timeout errors
• 6d3fe26 add support for typescript-style docstrings
• 025fc2e run browser tests on GHA
• b1f26e2 handful of improvements to integration tests
• 59f31e3 fix typo in comment [ci skip]
• d1781b3 refactor collect-files to be a little more simple
• 185cada Release v8.2.1

See the full diff

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