chore(deps): Bump github.com/urfave/cli/v2 from 2.6.0 to 2.8.0

Bumps [github.com/urfave/cli/v2](https://github.com/urfave/cli) from 2.6.0 to 2.8.0.
- [Release notes](https://github.com/urfave/cli/releases)
- [Changelog](https://github.com/urfave/cli/blob/main/docs/CHANGELOG.md)
- [Commits](urfave/cli@v2.6.0...v2.8.0)

---
updated-dependencies:
- dependency-name: github.com/urfave/cli/v2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -42,7 +42,7 @@ require (
 
 require (
 	github.com/gorilla/mux v1.8.0
-	github.com/urfave/cli/v2 v2.6.0
+	github.com/urfave/cli/v2 v2.8.0
 	github.com/weaveworks-liquidmetal/flintlock/api v0.0.0-20211217111250-5f8d70c4a581
 	github.com/weaveworks-liquidmetal/flintlock/client v0.0.0-00010101000000-000000000000
 	github.com/yitsushi/file-tailor v1.0.0
@@ -53,6 +53,7 @@ require (
 	github.com/Microsoft/hcsshim v0.8.23 // indirect
 	github.com/PuerkitoBio/purell v1.1.1 // indirect
 	github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 // indirect
+	github.com/antzucaro/matchr v0.0.0-20210222213004-b04723ef80f0 // indirect
 	github.com/asaskevich/govalidator v0.0.0-20200907205600-7a23bdc65eef // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/bits-and-blooms/bitset v1.2.0 // indirect

go.sum

@@ -107,6 +107,8 @@ github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk5
 github.com/alexflint/go-filemutex v0.0.0-20171022225611-72bdc8eae2ae/go.mod h1:CgnQgUtFrFz9mxFNtED3jI5tLDjKlOM+oUF/sTk6ps0=
 github.com/andreyvit/diff v0.0.0-20170406064948-c7f18ee00883/go.mod h1:rCTlJbsFo29Kk6CurOXKm700vrz8f0KW0JNfpkRJY/8=
 github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
+github.com/antzucaro/matchr v0.0.0-20210222213004-b04723ef80f0 h1:R/qAiUxFT3mNgQaNqJe0IVznjKRNm23ohAIh9lgtlzc=
+github.com/antzucaro/matchr v0.0.0-20210222213004-b04723ef80f0/go.mod h1:v3ZDlfVAL1OrkKHbGSFFK60k0/7hruHPDq2XMs9Gu6U=
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
@@ -958,8 +960,8 @@ github.com/urfave/cli v1.20.0/go.mod h1:70zkFmudgCuE/ngEzBv17Jvp/497gISqfk5gWijb
 github.com/urfave/cli v1.22.1/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=
 github.com/urfave/cli v1.22.2 h1:gsqYFH8bb9ekPA12kRo0hfjngWQjkJPlN9R0N78BoUo=
 github.com/urfave/cli v1.22.2/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=
-github.com/urfave/cli/v2 v2.6.0 h1:yj2Drkflh8X/zUrkWlWlUjZYHyWN7WMmpVxyxXIUyv8=
-github.com/urfave/cli/v2 v2.6.0/go.mod h1:oDzoM7pVwz6wHn5ogWgFUU1s4VJayeQS+aEZDqXIEJs=
+github.com/urfave/cli/v2 v2.8.0 h1:EZsAB20oRW4nHcB99TTL6PrXpBGIEujMEKdjwruY9KQ=
+github.com/urfave/cli/v2 v2.8.0/go.mod h1:TYFbtzt/azQoJOrGH5mDfZtS0jIkl/OeFwlRWPR9KRM=
 github.com/vektah/gqlparser v1.1.2/go.mod h1:1ycwN7Ij5njmMkPPAOaRFY4rET2Enx7IkVv3vaXspKw=
 github.com/vishvananda/netlink v0.0.0-20181108222139-023a6dafdcdf/go.mod h1:+SR5DhBJrl6ZM7CoCKvpw5BKroDKQ+PJqOg65H/2ktk=
 github.com/vishvananda/netlink v1.1.0/go.mod h1:cTgwzPIzzgDAYoQrMm0EdrjRUBkTqKYppBueQtXaqoE=