Update CHANGE_LOG for 0.55.0 final.
Update CHANGE_LOG for 0.55.0 final.

As title.

numba/numba,IntelLabs/numba,seibert/numba,cpcloud/numba,numba/numba,numba/numba,IntelLabs/numba,cpcloud/numba,numba/numba,seibert/numba,seibert/numba,cpcloud/numba,cpcloud/numba,seibert/numba,seibert/numba,IntelLabs/numba,IntelLabs/numba,numba/numba,cpcloud/numba,IntelLabs/numba