fix(deps): update module github.com/urfave/cli/v2 to v2.7.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
github.com/urfave/cli/v2	require	minor	v2.5.1 -> v2.7.1

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Release Notes

urfave/cli

v2.7.1

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What's Changed

• Docs publishing fixes by @​meatballhat in https://github.com/urfave/cli/pull/1400

Full Changelog: urfave/cli@v2.7.0...v2.7.1

v2.7.0

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What's Changed

• Generate flag types (again?) by @​meatballhat in https://github.com/urfave/cli/pull/1382
• Introduce a v2.x semver approval gate by @​meatballhat in https://github.com/urfave/cli/pull/1385
• Generate RequiredFlag and VisibleFlag implementations by @​meatballhat in https://github.com/urfave/cli/pull/1393
• Mkdocs setup by @​meatballhat in https://github.com/urfave/cli/pull/1392
• Add suggestions support (#​977) by @​meatballhat in https://github.com/urfave/cli/pull/1390
• Add suggestions support by @​saschagrunert in https://github.com/urfave/cli/pull/977

Full Changelog: urfave/cli@v2.6.0...v2.7.0

v2.6.0

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What's Changed

• Simplified flag value access by @​toaster in https://github.com/urfave/cli/pull/1367

New Contributors

• @​toaster made their first contribution in https://github.com/urfave/cli/pull/1367

Full Changelog: urfave/cli@v2.5.1...v2.6.0

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