Global Illumination Preprocessing background task is stuck indefinitely when using a skybox shader

Reproduction steps:
1. Open the “GiStripped“ project
2. Open the “Sample” scene
3. Observing the background tasks in the bottom right of the Editor for up to a minute

Expected result: Background tasks get completed
Actual result: Global Illumination Preprocessing is stuck indefinitely

Reproduced in: 2021.3.29f1, 2022.3.8f1, 2023.1.9f1, 2023.2.0a18
Not reproduced in: 2023.2.0a19, 2023.2.0b7, 2023.3.0a2

Reproduced on: macOS 13.4.1 (Intel), Windows 11 (by reporter)
Not reproduced on: No other environment tested

Note: Not reproduced in a scene without the skybox shader