Bump github.com/urfave/cli/v2 from 2.4.4 to 2.8.1

Bumps [github.com/urfave/cli/v2](https://github.com/urfave/cli) from 2.4.4 to 2.8.1.
- [Release notes](https://github.com/urfave/cli/releases)
- [Changelog](https://github.com/urfave/cli/blob/main/docs/CHANGELOG.md)
- [Commits](urfave/cli@v2.4.4...v2.8.1)

---
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

@@ -11,7 +11,7 @@ require (
 	github.com/prometheus/client_model v0.2.0
 	github.com/prometheus/exporter-toolkit v0.7.1
 	github.com/stretchr/testify v1.7.1
-	github.com/urfave/cli/v2 v2.4.8
+	github.com/urfave/cli/v2 v2.8.1
 	k8s.io/klog/v2 v2.60.1
 )
 
@@ -32,6 +32,7 @@ require (
 	github.com/prometheus/common v0.32.1 // indirect
 	github.com/prometheus/procfs v0.7.3 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
 	golang.org/x/crypto v0.0.0-20210921155107-089bfa567519 // indirect
 	golang.org/x/net v0.0.0-20211015174653-db2dff38ab41 // indirect
 	golang.org/x/oauth2 v0.0.0-20211005180243-6b3c2da341f1 // indirect

go.sum

@@ -218,8 +218,10 @@ github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81P
 github.com/stretchr/testify v1.7.1 h1:5TQK59W5E3v0r2duFAb7P95B6hEeOyEnHRa8MjYSMTY=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/urfave/cli/v2 v2.3.0/go.mod h1:LJmUH05zAU44vOAcrfzZQKsZbVcdbOG8rtL3/XcUArI=
-github.com/urfave/cli/v2 v2.4.8 h1:9HuvvddU3oEJr1tJlwUVVsk3snVWMuKSpyAO+SzTNuI=
-github.com/urfave/cli/v2 v2.4.8/go.mod h1:oDzoM7pVwz6wHn5ogWgFUU1s4VJayeQS+aEZDqXIEJs=
+github.com/urfave/cli/v2 v2.8.1 h1:CGuYNZF9IKZY/rfBe3lJpccSoIY1ytfvmgQT90cNOl4=
+github.com/urfave/cli/v2 v2.8.1/go.mod h1:Z41J9TPoffeoqP0Iza0YbAhGvymRdZAd2uPmZ5JxRdY=
+github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 h1:bAn7/zixMGCfxrRTfdpNzjtPYqr8smhKouy9mxVdGPU=
+github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673/go.mod h1:N3UwUGtsrSj3ccvlPHLoLsHnpR27oXr4ZE984MbSER8=
 github.com/yuin/goldmark v1.1.25/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.1.32/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=