[CI] handle more dynamo benchmark models that are not expected to be deterministic (#96324)
Follow-up to #96245. alexnet, Background_Matting, vision_maskrcnn, and vgg16 all have the same problem; but on float32 they were also failing on the previous day so I missed this. Once the amp jobs became available I could see that these have the same issue (on both float32 and amp).
Pull Request resolved: https://github.com/pytorch/pytorch/pull/96324
Approved by: https://github.com/desertfire
