Cleanup: update clang-format so PyObject_HEAD indents properly

source/blender/python/mathutils/mathutils_Matrix.c

@@ -3479,7 +3479,7 @@ int Matrix_Parse4x4(PyObject *o, void *p)
 
 typedef struct {
   PyObject_HEAD /* Required Python macro. */
-      MatrixObject *matrix_user;
+  MatrixObject *matrix_user;
   eMatrixAccess_t type;
 } MatrixAccessObject;
 

source/blender/python/mathutils/mathutils_bvhtree.c

@@ -93,7 +93,8 @@ static const char PY_BVH_TREE_TYPE_DEFAULT = 4;
 static const char PY_BVH_AXIS_DEFAULT = 6;
 
 typedef struct {
-  PyObject_HEAD BVHTree *tree;
+  PyObject_HEAD
+  BVHTree *tree;
   float epsilon;
 
   float (*coords)[3];

source/blender/python/mathutils/mathutils_kdtree.c

@@ -37,7 +37,8 @@
 #include "BLI_strict_flags.h"
 
 typedef struct {
-  PyObject_HEAD KDTree_3d *obj;
+  PyObject_HEAD
+  KDTree_3d *obj;
   uint maxsize;
   uint count;
   uint count_balance; /* size when we last balanced */