Changed setup.py for RPI.GPIO

RPi.GPIO 0.7.0 is causing an error if installed under bullseye and python 3.9
-> 0.7.1a4 solves the issue for now.
-> will be changed as soon as new RPi.GPIO release is comming out

cbpi/__init__.py

@@ -1 +1 @@
-__version__ = "4.0.0.51"
+__version__ = "4.0.0.52"

cbpi/extension/mashstep/__init__.py

@@ -15,7 +15,6 @@ from typing import KeysView
 from cbpi.api.config import ConfigType
 from cbpi.api.base import CBPiBase
 import numpy as np
-#import scipy.optimize
 import warnings
 
 

setup.py

@@ -37,10 +37,9 @@ setup(name='cbpi',
           'asyncio-mqtt',
           'psutil==5.8.0',
           'numpy==1.20.3',
-          'scipy',
           'cbpi4ui',
           'importlib_metadata'] + (
-              ['RPi.GPIO'] if platform.uname()[1] == "raspberrypi" else [] ),
+              ['RPi.GPIO==0.7.1a4'] if platform.uname()[1] == "raspberrypi" else [] ),
 
         dependency_links=[
         'https://testpypi.python.org/pypi',