"m_IndirectSpecularColor" changes every time when changes are made to the scene

Reproduction steps:
1. Upload project “save_repro.zip” to a version control repository
2. Open project “save_repro.zip”
3. Open “OutdoorsScene”
4. Select “Main Camera” in the Hierarchy and move its position on Y axis from 0 to 0.3
5. Save the scene
6. Observe “Assets/OutdoorsScene.unity” in the version control repository

Expected result: “m_IndirectSpecularColor” has not changed
Actual result: “m_IndirectSpecularColor” has changed

Reproducible with: 2021.3.29f1, 2022.3.8f1, 2023.1.10f1, 2023.2.0b6, 2023.3.0a2

Reproducible on: macOS Ventura 13.2.1 (Intel)
Not reproducible on: no other environment tested

Note: might to be caused by the Physically Based Sky effect