Function contains crashes for element of type object

[anbrsap]

Problem

With the following JMESPatch expression (download):

contains(`[{"k": "v"}]`, `{ "k": "v" }`)

go-jmespath panicks:

$ kyverno jp -e contains.jmespath.txt <<<"{}"
panic: runtime error: comparing uncomparable type map[string]interface {}

goroutine 1 [running]:
github.com/jmespath/go-jmespath.jpfContains({0xc000bd08e0?, 0xc000bd08e0?, 0x2?})
	/home/runner/go/pkg/mod/github.com/kyverno/[email protected]/functions.go:455 +0x145
github.com/jmespath/go-jmespath.(*functionCaller).CallFunction(0x28a9be0?, {0xc000796240, 0x8}, {0xc000bd08e0, 0x2, 0x2}, 0xc000bde0b0)
	/home/runner/go/pkg/mod/github.com/kyverno/[email protected]/functions.go:401 +0x252
github.com/jmespath/go-jmespath.(*treeInterpreter).Execute(0xc000bde0b0, {0x4, {0x27e9160, 0xc000bcc280}, {0xc000bca420, 0x2, 0x2}}, {0x290c1c0, 0xc000bd2720})
	/home/runner/go/pkg/mod/github.com/kyverno/[email protected]/interpreter.go:93 +0x1fe9
github.com/jmespath/go-jmespath.(*JMESPath).Search(...)
	/home/runner/go/pkg/mod/github.com/kyverno/[email protected]/api.go:37
github.com/kyverno/kyverno/cmd/cli/kubectl-kyverno/jp.Command.func1(0xc000bc8c00?, {0xc000bd03e0?, 0x2?, 0x2?})
	/home/runner/work/kyverno/kyverno/cmd/cli/kubectl-kyverno/jp/jp_command.go:87 +0x846
github.com/spf13/cobra.(*Command).execute(0xc000bc8c00, {0xc000bd03c0, 0x2, 0x2})
	/home/runner/go/pkg/mod/github.com/spf13/[email protected]/command.go:916 +0x862
github.com/spf13/cobra.(*Command).ExecuteC(0xc000bc8000)
	/home/runner/go/pkg/mod/github.com/spf13/[email protected]/command.go:1040 +0x3b4
github.com/spf13/cobra.(*Command).Execute(...)
	/home/runner/go/pkg/mod/github.com/spf13/[email protected]/command.go:968
main.main()
	/home/runner/work/kyverno/kyverno/cmd/cli/kubectl-kyverno/main.go:35 +0xc9

Expected Behavior

The expression should evaluate to true.

Interestingly, a comparison using == of the same object values works as expected (download):

`{"k":"v"}` == `{ "k": "v" }`

$ kyverno jp -e equals.jmespath.txt <<<"{}"
true

Additional Info

Kyverno versions known to be affected (non-exhaustive): 1.8.1, 1.8.3