Implement test detection for ginkgo tests

[lsoica]

Currently, executing testkube generate tests-crds . returns

# getting test options for file user_authentication_test.go can't detect executor type by passed file content (), please pass valid --type flag
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As the IsWithPath function for the ginkgo detector is not implemented:
https://github.com/kubeshop/testkube/blob/main/contrib/executor/ginkgo/pkg/ginkgo/ginkgo.go#L31

// IsWithPath detects based on upsert test options what kind of test it is
func (d Detector) IsWithPath(path string, options apiClient.UpsertTestOptions) (name string, ok bool) {
	// TODO: implement for multiple files test
	return "", false
}

[vsukhin]

hey @lsoica Thank you for a good question. At the moment we don't support crd generation for a folder based tests like Ginkgo, it only works for a single file based tests. But we are going to improve it in Pro edition, ping @TheBrunoLopes