Clean up anaconda repository #427

Job	Run time
Clean up anaconda packages (dppy/numba-mlir)	47s
Clean up anaconda packages (dppy/dpbench)	51s
Clean up anaconda packages (dppy/numba-dpex)	45s
Clean up anaconda packages (dppy/dpcpp-llvm-spirv)	54s
Clean up anaconda packages (dppy/dpctl)	45s
Clean up anaconda packages (dppy/dpnp)	56s
	4m 58s

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