[BUG] Prospector CaptureStream triggers a false positive pylint check

[volans-]

Describe the bug

False positive pylint no-member reported due to Prospector overriding sys.stdout with a CaptureStream instance.

To Reproduce

1. Have some code that checks for sys.stdout.isatty()
2. Call prospector so that it runs pylint
3. Get as error: pylint: no-member / Instance of 'CaptureStream' has no 'isatty' member (col 15)

Expected behavior

No error is reported

Environment

• OS: macOS Sonoma
• Tool pylint
• Prospector version 1.12.0
• Python version 3.11 (reproduced also with 3.9)