Expand source generator SIMD to support sizes 33-64 #218

Job	Run time
build	1m 0s
test & benchmark (windows-latest)	11m 56s
test & benchmark (ubuntu-latest)	5m 47s
test & benchmark (ubuntu-24.04-arm)	5m 53s
test & benchmark (macos-latest)	4m 10s
summarize	7s
	28m 53s

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