Assertion Error after an Upgrade to XCode Version 14.2 and Charts Master

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## What did you do?

Upgraded XCode to Version 14.2 from 13 and Charts to branch->Master from older version 3.6

## What did you expect to happen?

I expected my app to run without any error and show chart as it was doing before these upgrades

## What happened instead?

XCode project was built successfully after I made some code changes as per #4860 (and made few other minor changes like changing addDataSet to append)
However, after the build, the simulator gets stuck and XCode throws following error after launching

Assertion failed: removeAll(keepingCapacity:) not supported for CombinedData

Error at :
Script: ChartData.swift
function: removeAll
LOC: assert(!(self is CombinedChartData), "\(#function) not supported for CombinedData")

## Charts Environment

**Charts version/Branch/Commit Number: Branch Master
**Xcode version: 14.2
**Swift version: Swift 5
**Platform(s) running Charts: XCode Simulator iPhone 14 pro (iOS 16.2)
**macOS version running Xcode: Ventura version 13.1 (22C65)

## Demo Project

ℹ Please link to or upload a project we can download that reproduces the issue.

Start with ChartData.swift and the removeAll assertion for CombinedChartData, then review the code changes required by #4860 and the reported addDataSet-to-append changes. Reproduce the failure using Charts master with Xcode 14.2, Swift 5, and the iPhone 14 Pro simulator; done means the simulator launches without this assertion and the chart displays as before.

Written by the indexing model from the issue text.