Clean up anaconda repository #212

Job	Run time
Clean up anaconda packages (dppy/dpnp)	1m 35s
Clean up anaconda packages (dppy/numba-mlir)	1m 8s
Clean up anaconda packages (dppy/dpbench)	49s
Clean up anaconda packages (dppy/dpcpp-llvm-spirv)	1m 4s
Clean up anaconda packages (dppy/dpctl)	1m 34s
Clean up anaconda packages (dppy/numba-dpex)	1m 0s
	7m 10s

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