fix(deps): update dependency yargs to v14

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
yargs (source)	dependencies	major	13.3.0 -> 14.0.0

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Release Notes

yargs/yargs

v14.0.0

Compare Source

⚠ BREAKING CHANGES

• we now only officially support yargs.$0 parameter and discourage direct access to yargs.parsed
• previously to this fix methods like yargs.getOptions() contained the state of the last command to execute.
• do not allow additional positionals in strict mode

Bug Fixes

• calling parse multiple times now appropriately maintains state (#​1137) (#​1369) (026b151)
• prefer user supplied script name in usage (#​1383) (28c74b9)
• deps: use decamelize from npm instead of vendored copy (#​1377) (015eeb9)
• examples: fix usage-options.js to reflect current API (#​1375) (6e5b76b)
• do not allow additional positionals in strict mode (35d777c)
• properties accessed on singleton now reflect current state of instance (#​1366) (409d35b)
• tolerate null prototype for config objects with extends (#​1376) (3d26d11), closes #​1372
• yargs.parsed now populated before returning, when yargs.parse() called with no args (#​1382) (e3981fd), closes #​1382

Features

• adds support for multiple epilog messages (#​1384) (07a5554)
• allow completionCommand to be set via showCompletionScript (#​1385) (5562853)

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[coveralls]

Coverage remained the same at 100.0% when pulling 855ce30 on renovate/yargs-14.x into a307562 on master.