Bump lxml to v6.0.3 #648

Job	Run time
cache_libs / cache_libs (ubuntu-22.04-arm)	17s
cache_libs / cache_libs (windows-2022)	24s
cache_libs / cache_libs (windows-11-arm)	37s
cache_libs / cache_libs (macos-latest)	9s
cache_libs / cache_libs (ubuntu-22.04)	10s
manylinux (cp311-cp311, manylinux_2_28_x86_64)	3m 41s
manylinux (cp310-cp310, manylinux_2_28_x86_64)	3m 46s
manylinux (cp39-cp39, manylinux_2_28_x86_64)	3m 45s
manylinux (cp310-cp310, manylinux2014_x86_64)	3m 15s
manylinux (cp39-cp39, musllinux_1_2_x86_64)	4m 6s
manylinux (cp311-cp311, manylinux2014_x86_64)	3m 24s
manylinux (cp310-cp310, musllinux_1_2_x86_64)	4m 8s
manylinux (cp39-cp39, manylinux2014_x86_64)	3m 23s
manylinux (cp312-cp312, manylinux_2_28_x86_64)	3m 41s
manylinux (cp313-cp313, manylinux_2_28_x86_64)	3m 49s
manylinux (cp312-cp312, musllinux_1_2_x86_64)	3m 47s
manylinux (cp313-cp313, manylinux2014_x86_64)	3m 24s
manylinux (cp311-cp311, musllinux_1_2_x86_64)	3m 59s
manylinux (cp312-cp312, manylinux2014_x86_64)	3m 19s
manylinux (cp314-cp314, manylinux2014_x86_64)	3m 29s
manylinux (cp314-cp314, musllinux_1_2_x86_64)	4m 10s
manylinux (cp314-cp314, manylinux_2_28_x86_64)	3m 53s
manylinux (cp313-cp313, musllinux_1_2_x86_64)	3m 56s
	1h 8m 32s

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