Clean up anaconda repository #408

Job	Run time
Clean up anaconda packages (dppy/dpnp)	46s
Clean up anaconda packages (dppy/numba-dpex)	1m 8s
Clean up anaconda packages (dppy/dpbench)	45s
Clean up anaconda packages (dppy/dpctl)	54s
Clean up anaconda packages (dppy/dpcpp-llvm-spirv)	45s
Clean up anaconda packages (dppy/numba-mlir)	43s
	5m 1s

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