Clean up anaconda repository #229

Job	Run time
Clean up anaconda packages (dppy/dpctl)	1m 3s
Clean up anaconda packages (dppy/dpnp)	1m 8s
Clean up anaconda packages (dppy/dpcpp-llvm-spirv)	1m 2s
Clean up anaconda packages (dppy/numba-mlir)	1m 18s
Clean up anaconda packages (dppy/numba-dpex)	59s
Clean up anaconda packages (dppy/dpbench)	1m 0s
	6m 30s

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