Python: TypeError: Kernel.create_new_context() takes 1 positional argument but 2 were given #3219

Describe the bug
In the python sdk (0.3.12.dev0), when running Plan.run_next_step_async the method throws a TypeError. Inside the method, there's a call to Kernel.create_new_context. The create_new_context method does not take any arguments, but ContextVariables are passed in.

Here's the implementation of Plan.run_next_step_async:

async def run_next_step_async(
        self,
        kernel: Kernel,
        variables: ContextVariables,
    ) -> "Plan":
        context = kernel.create_new_context(variables)
        return await self.invoke_next_step(context)

and here's the implementation of Kernel.create_new_context:

def create_new_context(self) -> SKContext:
        return SKContext(
            ContextVariables(),
            self._memory,
            self.skills,
            self._log,
        )

To Reproduce
Steps to reproduce the behavior:

1. instantiate a kernel
2. create a plan
3. run plan.run_next_async(kernel, ContextVariables())

import semantic_kernel as sk
from semantic_kernel.planning.plan import Plan
from semantic_kernel.orchestration.context_variables import ContextVariables

kernel = sk.Kernel()
plan = Plan()
plan = await plan.run_next_step_async(kernel, ContextVariables())

Expected behavior
The method should not raise a TypeError

Screenshots
If applicable, add screenshots to help explain your problem.

Platform

• OS: Mac
• IDE: Intellij
• Language: Python
• Source: 0.3.12.dev0

Additional context
The fix seems to be one of the two options:

1. instantiate SKContext directly instead of using the kernel
2. create another method on Kernel to create the SKContext while passing in ContextVariables

I'm happy to submit a PR to resolve this, but need some help in the overall direction of the fix.