Use real types to parse labels

We were using `yaml.Unmarshal` on basic types or inline structs. This
was not efficient and not clear to defined what we expect in labels.
We now use types to unmarshal the labels.

Only the `values` label is, at this time, parsed by GetValuesFromLabel
because this `utils` function is clearly a special case.

generator/labelStructs/probes.go

@@ -0,0 +1,19 @@
+package labelStructs
+
+import (
+	"gopkg.in/yaml.v3"
+	corev1 "k8s.io/api/core/v1"
+)
+
+type Probe struct {
+	LivenessProbe  *corev1.Probe `yaml:"livenessProbe,omitempty"`
+	ReadinessProbe *corev1.Probe `yaml:"readinessProbe,omitempty"`
+}
+
+func ProbeFrom(data string) (*Probe, error) {
+	var mapping Probe
+	if err := yaml.Unmarshal([]byte(data), &mapping); err != nil {
+		return nil, err
+	}
+	return &mapping, nil
+}