[Snyk] Security upgrade mocha from 8.4.0 to 9.1.2

[snyk-bot]

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:
  • packages/popover2/package.json

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	696/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 7.5	Regular Expression Denial of Service (ReDoS) SNYK-JS-ANSIREGEX-1583908	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 51 commits.

• 18a1055 build(v9.1.2): release
• 011a5a4 fix: regex in 'update-authors.js'
• 06f3f63 build(v9.1.2): update CHANGELOG [ci skip]
• a87461c chore(deps): remove 'wide-align' ([v4] table body context menu skipped test palantir/blueprint#4754)
• c7f56d1 docs: how to use 'rootHooks' in the browser ([v4] merge develop into next branch palantir/blueprint#4755) [ci skip]
• 8421974 fix(browser): stop using all global vars in 'browser-entry' (why blueprint still doesn't have a grid system? palantir/blueprint#4746)
• 27bfc74 docs: add complete '--delay' example ([popover2] fix(ContextMenu2): Tooltip2 and autofocus interactions palantir/blueprint#4744) [ci skip]
• 4860738 chore(devDeps): update 'eslint' and its plugins (chore(deps): bump dns-packet from 1.3.1 to 1.3.4 palantir/blueprint#4737)
• abfddf8 docs: fix broken table width under 450 screen width (Add dialog role and tests palantir/blueprint#4734)
• 97b8470 chore(esm): remove code for Node versions <10 ([popover2] fix(Popover2): handle popover v1 dismiss correctly palantir/blueprint#4736)
• 654b5df build(v9.1.1): release
• a26cca9 build(v9.1.1): update CHANGELOG [ci skip]
• e975675 chore: update some devDependencies (Overwritting Card css with css className palantir/blueprint#4733)
• 9e0369b fix(parallel): 'XUNIT' and 'JSON' reporter crash ([v4] fix: remove usage of findDOMNode palantir/blueprint#4623)
• 014e47a build(v9.1.0): release
• 3a14b28 build(v9.1.0): update CHANGELOG [ci skip]
• 171e211 feat(reporter): add output option to 'JSON' ([popover2] onClose is triggered twice in controlled mode palantir/blueprint#4607)
• bbf0c11 feat: add new option 'fail-zero' (chore: fix lint script in CI palantir/blueprint#4716)
• 757b85d docs: improve 'grep()' and clarify docs (chore(deps): bump postcss from 8.2.4 to 8.2.10 palantir/blueprint#4714)
• f19d3ca docs: remove unsupported 'no-timeout' option (ContextMenu2 does not dismiss tooltip on open palantir/blueprint#4719) [ci skip]
• 9f82ccb chore(gha): update 'stale.yml' ([popover2] fix(ContextMenu2): allow content function to return undefined palantir/blueprint#4718) [ci skip]
• 09ffc30 Set CSP on karma to prevent 'evalError' regression (Feature request: Ability to reverse the up/down buttons on NumericInput  palantir/blueprint#4706)
• 02bf13d Update devDep '@ babel/preset-env' and pin 'regenerator-runtime' (chore(deps): bump hosted-git-info from 2.8.8 to 2.8.9 palantir/blueprint#4707)
• 54a5788 Add new option "node-option" (Popover2 documentation annoying behavior palantir/blueprint#4691)

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