UNSTABLE Build M1 Wheels / pytorch/executorch / upload / wheel-py3_9-cpu

[dbort]

Please provide a brief reason on why you need to mark this job as unstable.

ET doesn't currently support python 3.9

[pytorch-bot]

Hello there! From the UNSTABLE prefix in this issue title, it looks like you are attempting to unstable a job in PyTorch CI. The information I have parsed is below:

• Job name: Build M1 Wheels / pytorch/executorch / upload / wheel-py3_9-cpu
• Credential: dbort

Within ~15 minutes, Build M1 Wheels / pytorch/executorch / upload / wheel-py3_9-cpu and all of its dependants will be unstable in PyTorch CI. Please verify that the job name looks correct. With great power comes great responsibility.

[huydhn]

I landed #7064 few days ago to allow the team to choose which python version to support, so we can turn off 3.9 build now. Keeping this issue open is not needed anymore.