Clean up anaconda repository #402

Job	Run time
Clean up anaconda packages (dppy/numba-mlir)	56s
Clean up anaconda packages (dppy/dpcpp-llvm-spirv)	54s
Clean up anaconda packages (dppy/numba-dpex)	1m 3s
Clean up anaconda packages (dppy/dpbench)	34s
Clean up anaconda packages (dppy/dpnp)	52s
Clean up anaconda packages (dppy/dpctl)	51s
	5m 10s

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