breaking: remove multi-task support in tf #7521

Job	Run time
determine-arm64-runner	1s
Build source distribution	23s
Build wheels for cp311-manylinux_x86_64	5m 26s
Build wheels for cp311-manylinux_x86_64	5m 49s
Build wheels for cp311-macosx_x86_64	5m 53s
Build wheels for cp311-macosx_arm64	2m 43s
Build wheels for cp311-win_amd64	8m 2s
Build wheels for cp310-manylinux_aarch64	6m 5s
build_pypi_index	11s
build_docker (12)	2m 42s
build_docker (_cu11, 11)	2m 29s
upload_pypi	0s
deploy_pypi_index	0s
Pass testing build wheels	4s
	39m 48s

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