python3-pymodbus: upgrade 3.6.8 -> 3.6.9

Changelog:
==========
- Remove python 3.8 from CI
- Log comm retries.
- Solve serial unrequested frame.
- test convert registers with 1234....
- Fix writing to serial (rs485) on windows os.
- Remember to remove serial writer.
- Update client.rst
- Fix usage file names
- Show error if example is run without support files.
- Solve pylint error.
- Describe zero_mode in ModbusSlaveContext.init
- Datastore will not return ExceptionResponse.
- call async datastore from modbus server
- Transaction id overrun.
- Add minimal devcontainer.
- Sphinx: do not turn warnings into errors.
- Fix usage of AsyncModbusTcpClient in client docs page
- Bump actions CI.
- Request/Response: change execute to be async method
- datastore: add async_setValues/getValues methods
- fixed kwargs not being expanded for actions on bit registers, adjusted tests to catch this issue
- Clean datastore setValues.
- modbus_server: call execute in a way that those can be either coroutines or normal methods
- Streamline message class.
- Fix decode for wrong mdap len.
- SOCKET/TLS framer using message decode().
- ASCII framer using message decode()
- Add generate_ssl() to TLS client as helper.
- add _legacy_decoder to message rtu

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-python/recipes-devtools/python/python3-pymodbus_3.6.9.bb

@@ -3,7 +3,7 @@ HOMEPAGE = "https://github.com/riptideio/pymodbus/"
 LICENSE = "BSD-3-Clause"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=eba8057aa82c058d2042b4b0a0e9cc63"
 
-SRC_URI[sha256sum] = "abb214716b56fc62bc0d5d9d964e2249439341746287e918d175f0e3ee241407"
+SRC_URI[sha256sum] = "f4223b72c20cd00a2cf25f6ddb31ecb2c0587309111a55283b2f4a1ac115e4cc"
 
 inherit pypi python_setuptools_build_meta