fix(deps): update module github.com/spf13/cobra to v1.6.1

Signed-off-by: Renovate Bot <bot@renovateapp.com>

go.mod

@@ -12,7 +12,7 @@ require (
 	github.com/opencontainers/image-spec v1.1.0-rc2
 	github.com/opencontainers/image-tools v1.0.0-rc3
 	github.com/sirupsen/logrus v1.9.0
-	github.com/spf13/cobra v1.6.0
+	github.com/spf13/cobra v1.6.1
 	github.com/spf13/pflag v1.0.5
 	github.com/stretchr/testify v1.8.1
 	github.com/syndtr/gocapability v0.0.0-20200815063812-42c35b437635

go.sum

@@ -1646,8 +1646,8 @@ github.com/spf13/cobra v1.1.3/go.mod h1:pGADOWyqRD/YMrPZigI/zbliZ2wVD/23d+is3pSW
 github.com/spf13/cobra v1.2.1/go.mod h1:ExllRjgxM/piMAM+3tAZvg8fsklGAf3tPfi+i8t68Nk=
 github.com/spf13/cobra v1.4.0/go.mod h1:Wo4iy3BUC+X2Fybo0PDqwJIv3dNRiZLHQymsfxlB84g=
 github.com/spf13/cobra v1.5.0/go.mod h1:dWXEIy2H428czQCjInthrTRUg7yKbok+2Qi/yBIJoUM=
-github.com/spf13/cobra v1.6.0 h1:42a0n6jwCot1pUmomAp4T7DeMD+20LFv4Q54pxLf2LI=
-github.com/spf13/cobra v1.6.0/go.mod h1:IOw/AERYS7UzyrGinqmz6HLUo219MORXGxhbaJUqzrY=
+github.com/spf13/cobra v1.6.1 h1:o94oiPyS4KD1mPy2fmcYYHHfCxLqYjJOhGsCHFZtEzA=
+github.com/spf13/cobra v1.6.1/go.mod h1:IOw/AERYS7UzyrGinqmz6HLUo219MORXGxhbaJUqzrY=
 github.com/spf13/jwalterweatherman v1.0.0/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo=
 github.com/spf13/jwalterweatherman v1.1.0/go.mod h1:aNWZUN0dPAAO/Ljvb5BEdw96iTZ0EXowPYD95IqWIGo=
 github.com/spf13/pflag v0.0.0-20170130214245-9ff6c6923cff/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=

vendor/github.com/spf13/cobra/command.go

@@ -998,6 +998,10 @@ func (c *Command) ExecuteC() (cmd *Command, err error) {
 	// initialize completion at the last point to allow for user overriding
 	c.InitDefaultCompletionCmd()
 
+	// Now that all commands have been created, let's make sure all groups
+	// are properly created also
+	c.checkCommandGroups()
+
 	args := c.args
 
 	// Workaround FAIL with "go test -v" or "cobra.test -test.v", see #155
@@ -1092,6 +1096,19 @@ func (c *Command) ValidateRequiredFlags() error {
 	return nil
 }
 
+// checkCommandGroups checks if a command has been added to a group that does not exists.
+// If so, we panic because it indicates a coding error that should be corrected.
+func (c *Command) checkCommandGroups() {
+	for _, sub := range c.commands {
+		// if Group is not defined let the developer know right away
+		if sub.GroupID != "" && !c.ContainsGroup(sub.GroupID) {
+			panic(fmt.Sprintf("group id '%s' is not defined for subcommand '%s'", sub.GroupID, sub.CommandPath()))
+		}
+
+		sub.checkCommandGroups()
+	}
+}
+
 // InitDefaultHelpFlag adds default help flag to c.
 // It is called automatically by executing the c or by calling help and usage.
 // If c already has help flag, it will do nothing.
@@ -1218,10 +1235,6 @@ func (c *Command) AddCommand(cmds ...*Command) {
 			panic("Command can't be a child of itself")
 		}
 		cmds[i].parent = c
-		// if Group is not defined let the developer know right away
-		if x.GroupID != "" && !c.ContainsGroup(x.GroupID) {
-			panic(fmt.Sprintf("Group id '%s' is not defined for subcommand '%s'", x.GroupID, cmds[i].CommandPath()))
-		}
 		// update max lengths
 		usageLen := len(x.Use)
 		if usageLen > c.commandsMaxUseLen {

vendor/github.com/spf13/cobra/user_guide.md

@@ -492,10 +492,11 @@ around it. In fact, you can provide your own if you want.
 
 ### Grouping commands in help
 
-Cobra supports grouping of available commands. Groups must be explicitly defined by `AddGroup` and set by
-the `GroupId` element of a subcommand. The groups will appear in the same order as they are defined.
-If you use the generated `help` or `completion` commands, you can set the group ids by `SetHelpCommandGroupId`
-and `SetCompletionCommandGroupId`, respectively.
+Cobra supports grouping of available commands in the help output.  To group commands, each group must be explicitly
+defined using `AddGroup()` on the parent command.  Then a subcommand can be added to a group using the `GroupID` element
+of that subcommand. The groups will appear in the help output in the same order as they are defined using different
+calls to `AddGroup()`.  If you use the generated `help` or `completion` commands, you can set their group ids using
+`SetHelpCommandGroupId()` and `SetCompletionCommandGroupId()` on the root command, respectively.
 
 ### Defining your own help
 

vendor/modules.txt

@@ -379,7 +379,7 @@ github.com/sigstore/sigstore/pkg/signature/payload
 # github.com/sirupsen/logrus v1.9.0
 ## explicit; go 1.13
 github.com/sirupsen/logrus
-# github.com/spf13/cobra v1.6.0
+# github.com/spf13/cobra v1.6.1
 ## explicit; go 1.15
 github.com/spf13/cobra
 # github.com/spf13/pflag v1.0.5