Fill in DDPA v2alpha1

Similar to v1alpah1, with the following changes:
- `spec.policy` renamed to `spec.actuation`
- `spec.policy.applyMode` replaced with `spec.actuation.mode` (allowed values
   `Apply` and `Preview`)
- `spec.policy.upscale.match` and `spec.policy.donwscale.match` removed
- `spec.policy.targets` renamed to `spec.policy.objectives`
- `sepc.policy.contraints.containers[].limits` removed

api/datadoghq/v2alpha1/datadogagent_types.go

@@ -1442,7 +1442,7 @@ type SecretBackendConfig struct {
 	Roles []*SecretBackendRolesConfig `json:"roles,omitempty"`
 }
 
-// NetworkPolicyFlavor specifies which flavor of Network Policy to use.
+// NetworkPolicyFlavor specifies which flavor of Network Actuation to use.
 type NetworkPolicyFlavor string
 
 const (
@@ -1453,7 +1453,7 @@ const (
 	NetworkPolicyFlavorCilium NetworkPolicyFlavor = "cilium"
 )
 
-// NetworkPolicyConfig provides Network Policy configuration for the agents.
+// NetworkPolicyConfig provides Network Actuation configuration for the agents.
 // +k8s:openapi-gen=true
 type NetworkPolicyConfig struct {
 	// Create defines whether to create a NetworkPolicy for the current deployment.