Add System.Net.Http.StreamContext as tracking Disposable

[BADF00D]

Prerequisites

• [x] I have written a descriptive issue title
• [x] I have verified that I am running the latest version of DisposableFixer: CURRENT
• [x] I have searched open and closed issues to ensure it has not already been reported

Description

Source Code

var ms = new MemoryStream();
ExcelWorkbookCreator.CreateWorkbookWithOneSheet(ms, _importData);
RequestContent = new StreamContent(ms);

Screenshot