Sprite packer does not obey padding when "Allow Rotation" is enabled

How to reproduce:

1. Open the attached project “IN-139653”
2. In the Project window, select the “New Sprite Atlas” asset
3. In the Inspector, ensure that Padding is set to 2
4. Press the “Pack Preview” button and observe the preview

Actual result: Gaps between sprites are not even
Expected result: Gaps between sprites are even

Reproducible with: 6000.3.0b8, 6000.3.13f1, 6000.4.3f1, 6000.5.0b4, 6000.6.0a2
Not reproducible with: 6000.0.73f1, 6000.3.0b7

Reproducible on: Windows 11
Not reproducible on: No other environments tested

Note: Padding of ‘4' and '8’ reproduces the same issue in 6000.4 and newer