Reduce SAM2 AMG cli startup by using deploy

[cpuhrsch]

Use modal deploy to reduce startup times.

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/ao/1350

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❌ 3 New Failures

As of commit 62877d0 with merge base b3493eb ():

NEW FAILURES - The following jobs have failed:

• Run Regression Tests / test (CUDA 2.3, linux.g5.12xlarge.nvidia.gpu, torch==2.3.0, cuda, 12.1) / linux-job (gh)
  ##[error]fatal: couldn't find remote ref refs/pull/1350/merge
• Run Regression Tests / test (CUDA 2.4, linux.g5.12xlarge.nvidia.gpu, torch==2.4.0, cuda, 12.1) / linux-job (gh)
  ##[error]fatal: couldn't find remote ref refs/pull/1350/merge
• Run Regression Tests / test-nightly (CUDA Nightly, linux.g5.12xlarge.nvidia.gpu, --pre torch --index-url https://downloa... / linux-job (gh)
  ##[error]fatal: couldn't find remote ref refs/pull/1350/merge

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