Tests

Mentioning the padding policy in transforms.GaussianBlur docs #2335

Job	Run time
onnx / linux-job	49s
unittests-extended / linux-job	52s
unittests-linux (3.10, linux.12xlarge, cpu) / linux-job	29s
unittests-linux (3.11, linux.12xlarge, cpu) / linux-job	40s
unittests-linux (3.8, linux.12xlarge, cpu) / linux-job	42s
unittests-linux (3.8, linux.g5.4xlarge.nvidia.gpu, cuda, 11.8) / linux-job	47s
unittests-linux (3.9, linux.12xlarge, cpu) / linux-job	44s
unittests-windows (3.10, windows.4xlarge, cpu) / windows-job	2m 41s
unittests-windows (3.11, windows.4xlarge, cpu) / windows-job	2m 36s
unittests-windows (3.8, windows.4xlarge, cpu) / windows-job	2m 51s
unittests-windows (3.8, windows.g5.4xlarge.nvidia.gpu, cuda, 11.8) / windows-job	38s
unittests-windows (3.9, windows.4xlarge, cpu) / windows-job	2m 37s
unittests-macos (3.10, macos-12) / macos-job	1m 27s
unittests-macos (3.11, macos-12) / macos-job	1m 11s
unittests-macos (3.8, macos-12) / macos-job	1m 46s
unittests-macos (3.8, macos-m1-stable) / macos-job	58s
unittests-macos (3.9, macos-12) / macos-job	1m 14s
	23m 2s

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