Library import to robot failing when python3.11 used

[pawezka]

There is a error during importing library on python3.11:

[ ERROR ] Error in library 'RemoteSwingLibrary': Adding keyword 'system_exit' failed: Calling dynamic method 'get_keyword_arguments' failed: AttributeError: module 'inspect' has no attribute 'getargspec'
[ ERROR ] Error in library 'RemoteSwingLibrary': Adding keyword 'start_application' failed: Calling dynamic method 'get_keyword_arguments' failed: AttributeError: module 'inspect' has no attribute 'getargspec'
[ ERROR ] Error in library 'RemoteSwingLibrary': Adding keyword 'application_started' failed: Calling dynamic method 'get_keyword_arguments' failed: AttributeError: module 'inspect' has no attribute 'getargspec'
[ ERROR ] Error in library 'RemoteSwingLibrary': Adding keyword 'switch_to_application' failed: Calling dynamic method 'get_keyword_arguments' failed: AttributeError: module 'inspect' has no attribute 'getargspec'
[ ERROR ] Error in library 'RemoteSwingLibrary': Adding keyword 'ensure_application_should_close' failed: Calling dynamic method 'get_keyword_arguments' failed: AttributeError: module 'inspect' has no attribute 'getargspec'
[ ERROR ] Error in library 'RemoteSwingLibrary': Adding keyword 'log_java_system_properties' failed: Calling dynamic method 'get_keyword_arguments' failed: AttributeError: module 'inspect' has no attribute 'getargspec'
[ ERROR ] Error in library 'RemoteSwingLibrary': Adding keyword 'set_java_tool_options' failed: Calling dynamic method 'get_keyword_arguments' failed: AttributeError: module 'inspect' has no attribute 'getargspec'
[ ERROR ] Error in library 'RemoteSwingLibrary': Adding keyword 'reinitiate' failed: Calling dynamic method 'get_keyword_arguments' failed: AttributeError: module 'inspect' has no attribute 'getargspec'

It is because of:

    def _get_args(self, method_name):
        spec = inspect.getargspec(getattr(self, method_name))
        args = spec[0][1:]
        if spec[3]:
            for i, item in enumerate(reversed(spec[3])):
                args[-i - 1] = args[-i - 1] + '=' + str(item)
        if spec[1]:
            args += ['*' + spec[1]]
        if spec[2]:
            args += ['**' + spec[2]]
        return args

getargspec method was deprecated since python3.0 and was removed in python3.11:
https://docs.python.org/3/whatsnew/3.11.html

[pawezka]

#118

this pull request should fix this issue on python 3.11