mpi: Fixup imag is a property

was wrongly implemented as a method

Author: Synss

ChangeLog

@@ -1,6 +1,7 @@
 [next]
 
 * pk: Remove obsoleted to_PEM and to_DER functions.
+* mpi: Fixup `imag` as property instead of method.
 * ci: Update wheels to mbedtls 2.28.8
 
 [2.9.2] - 2024-02-18

src/mbedtls/mpi.pyi

@@ -63,6 +63,7 @@ class MPI(numbers.Integral):
     def __ge__(self, __other: _Integral) -> bool: ...
     def __complex__(self) -> complex: ...
     def __real__(self) -> MPI: ...
+    @property
     def imag(self) -> Literal[0]: ...
     def conjugate(self) -> MPI: ...
     def __int__(self) -> int: ...

src/mbedtls/mpi.pyx

@@ -279,6 +279,7 @@ cdef class MPI:
     def real(self):
         return self
 
+    @property
     def imag(self):
         return 0