fix(deps): update module github.com/urfave/cli/v2 to v2.5.1 (#92)

Author: renovate[bot]

go.mod

@@ -7,7 +7,7 @@ require (
 	github.com/drone-plugins/drone-plugin-lib v0.4.0
 	github.com/joho/godotenv v1.4.0
 	github.com/sirupsen/logrus v1.8.1
-	github.com/urfave/cli/v2 v2.4.8
+	github.com/urfave/cli/v2 v2.5.1
 )
 
 require (

go.sum

@@ -26,8 +26,8 @@ github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnIn
 github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/urfave/cli/v2 v2.2.0/go.mod h1:SE9GqnLQmjVa0iPEY0f1w3ygNIYcIJ0OKPMoW2caLfQ=
-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 v2.5.1 h1:YKwdkyA0xTBzOaP2G0DVxBnCheHGP+Y9VbKAs4K1Ess=
+github.com/urfave/cli/v2 v2.5.1/go.mod h1:oDzoM7pVwz6wHn5ogWgFUU1s4VJayeQS+aEZDqXIEJs=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=