Update Source API to v1beta2

The creation of oldConditions, statusableConditions and
reconcilableConditions is an adhoc solution to deal with the upstream
changes on `pkg/apis/meta`, which are yet to be replicated across other
Flux API components.

Signed-off-by: Paulo Gomes <paulo.gomes@weave.works>

internal/utils/utils_test.go

@@ -25,7 +25,7 @@ import (
 	"reflect"
 	"testing"
 
-	"github.com/fluxcd/pkg/runtime/dependency"
+	"github.com/fluxcd/pkg/apis/meta"
 )
 
 func TestCompatibleVersion(t *testing.T) {
@@ -88,7 +88,7 @@ func TestMakeDependsOn(t *testing.T) {
 		"someNSD/",
 		"",
 	}
-	want := []dependency.CrossNamespaceDependencyReference{
+	want := []meta.NamespacedObjectReference{
 		{Namespace: "someNSA", Name: "someNameA"},
 		{Namespace: "someNSB", Name: "someNameB"},
 		{Namespace: "", Name: "someNameC"},