Update dependency mocha to v6.2.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
mocha (source)	devDependencies	minor	6.1.4 -> 6.2.0

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Release Notes

mochajs/mocha

v6.2.0

Compare Source

🎉 Enhancements

• #​3827: Do not fork child-process if no Node flags are present (@​boneskull)
• #​3725: Base reporter store ref to console.log, see mocha/wiki (@​craigtaub)

🐛 Fixes

• #​3942: Fix "No test files found" Error when file is passed via --file (@​gabegorelick)
• #​3914: Modify Mocha constructor to accept options global or globals (@​pascalpp)
• #​3894: Fix parsing of config files with _mocha binary (@​juergba)
• #​3834: Fix CLI parsing with default values (@​boneskull, @​juergba)
• #​3831: Fix --timeout/--slow string values and duplicate arguments (@​boneskull, @​juergba)

📖 Documentation

• #​3906: Document option to define custom report name for XUnit reporter (@​pkuczynski)
• #​3889: Adds doc links for mocha-examples (@​craigtaub)
• #​3887: Fix broken links (@​toyjhlee)
• #​3841: Fix anchors to configuration section (@​trescube)

🔍 Coverage

• #​3915, #​3929: Increase tests coverage for --watch options (@​geigerzaehler)

🔩 Other

• #​3953: Collect test files later, prepares improvements to the --watch mode behavior (@​geigerzaehler)
• #​3939: Upgrade for npm audit (@​boneskull)
• #​3930: Extract runWatch into separate module (@​geigerzaehler)
• #​3922: Add mocha.min.js file to stacktrace filter (@​brian-lagerman)
• #​3919: Update CI config files to use Node-12.x (@​plroebuck)
• #​3892: Rework reporter tests (@​plroebuck)
• #​3872: Rename --exclude to --ignore and create alias (@​boneskull)
• #​3963: Hide stacktrace when cli args are missing (@​outsideris)
• #​3956: Do not redeclare variable in docs array example (@​DanielRuf)
• #​3957: Remove duplicate line-height property in mocha.css (@​DanielRuf)
• #​3960: Don't re-initialize grep option on watch re-run (@​geigerzaehler)

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