[Snyk] Security upgrade yargs from 4.7.1 to 7.0.0

[SimenB]

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

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	601/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 5.6	Prototype Pollution SNYK-JS-YARGSPARSER-560381	Yes	Proof of Concept

(*) Note that the real score may have changed since the PR was raised.

Commit messages

Package name: yargs

The new version differs by 150 commits.

• bc56468 docs: a couple small twaks to the CHANGELOG
• 57dc7b5 chore(release): 7.0.0
• f3f074b fix: positional arguments of sub-commands threw strict() exception (#805)
• a607061 fix: console.warn() rather than throwing errors when api signatures are incorrect (#804)
• d78a0f5 feat: introduces support for default commands, using the '*' identifier (#785)
• 8a992f5 fix: errors were not bubbling appropriately from sub-commands to top-level (#802)
• 07e39b7 fix: running parse() multiple times on the same yargs instance caused exception if help() enabled (#790)
• 48575cd fix: context variables are now recognized in strict() mode (#796)
• 49a93fc fix: use path.resolve() to support node 0.10 (#797)
• 3280dd0 feat: allow provided config object to extend other configs (#779)
• e0fbbe5 fix: pull in yargs-parser with modified env precedence (#787)
• 0997288 fix: context should override parsed argv (#786)
• a8528e6 fix: address positional argument strict() bug introduced in #766 (#784)
• 23ccbb1 docs: remove demand examples (#772)
• 22ed9bb feat: function argument validation (#773)
• ab1fa4b feat: rethink how options are inherited by commands (#766)
• 8308efa feat: introduce custom yargs error object (#765)
• 6ab6a95 feat: add traditional Chinese translation (#780)
• bd1472b feat: add conflicts and implies shorthands. (#753)
• 7931652 feat: if only one column is provided for examples, allow it to take up the entire line (#749)
• 2e5ce0f fix: address min/max validation message regression (#750)
• 8de8272 chore: explicitly upgrade yargs-parser
• e5613f0 chore(release): 6.6.0
• 19a897b refactor: use process.stdout.columns instead of window-size (#737)

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