Fix windows build

src/core/processing/qgsprocessingalgorithm.h

@@ -23,6 +23,7 @@
 #include "qgsprocessingparameters.h"
 #include "qgsprocessingoutputs.h"
 #include "qgsprocessingcontext.h"
+#include "qgsfeaturesource.h"
 #include <QString>
 #include <QVariant>
 #include <QIcon>

src/core/processing/qgsprocessingparameters.h

@@ -23,14 +23,14 @@
 #include "qgsprocessing.h"
 #include "qgsproperty.h"
 #include "qgscoordinatereferencesystem.h"
+#include "qgsfeaturesource.h"
 #include <QMap>
 #include <limits>
 
 class QgsProcessingContext;
 class QgsRasterLayer;
 class QgsVectorLayer;
 class QgsFeatureSink;
-class QgsFeatureSource;
 class QgsProcessingFeatureSource;
 class QgsProcessingOutputDefinition;
 class QgsProcessingFeedback;