[easy][DCP] Fix test_fine_tuning.py for get/set_state_dict API changes

[cdzhan]

Update test/distributed/checkpoint/e2e/test_fine_tuning.py for #112203 change.

cc @mrshenli @pritamdamania87 @zhaojuanmao @satgera @gqchen @aazzolini @osalpekar @jiayisuse @H-Huang @kwen2501 @awgu @penguinwu @fegin @XilunWu @wanchaol @fduwjj @wz337 @tianyu-l @wconstab @yf225 @chauhang @d4l3k @LucasLLC @MeetVadakkanchery @mhorowitz

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✅ You can merge normally! (2 Unrelated Failures)

As of commit 61d30b6 with merge base d21f311 ():

BROKEN TRUNK - The following jobs failed but were present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• trunk / macos-py3-arm64-mps / test (mps, 1, 1, macos-m1-13) (gh) (trunk failure)
  test_mps.py::TestMPS::test_mps_allocator_module
• trunk / macos-py3-arm64-mps / test (mps, 1, 1, macos-m1-14) (gh) (trunk failure)
  test_mps.py::TestMPS::test_mps_allocator_module

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[fegin]

Thanks for the update.

[cdzhan]

@pytorchbot merge

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