Reproduction steps:
1. Open the attached “bug-addressables-build-warnings.zip” project
2. Open the “Addressables Groups” Window (Window > Asset Management > Addressables > Groups)
3. Select Build > New Build > Default Build Script
4. Observe the Console

Expected result: No warnings are thrown
Actual result: Many "Script attached to '…' is missing or no valid script is attached." warnings with different assets mentioned are thrown

Reproducible with: 1.21.21 (2021.3.40f1, 2022.3.36f1), 2.1.0 (2022.3.36f1, 6000.0.9f1)

Reproducible on: Windows 11
Not reproducible on: no other environment tested

Notes:
- The problem seems to only affect Addressables/SBP as the legacy Asset Bundle system does not trigger these warnings
- To reproduce the warnings again after a Build, go to "Build > Clear Build Cache > All"