Fix calculation of hash slots on 32bit env #10437

Job	Run time
rustfmt check	16s
python lint check	24s
clang format	51s
sanity checks	13s
rust build & test	3m 46s
gcc build & test 32-bit	20m 58s
clang build and test	4m 58s
clang tidy & clangd diagnostics check	18m 52s
code coverage	18m 47s
gcc build & test	11m 57s
msvc build & test	12m 53s
apple clang build & test	13m 13s
shell test	10m 31s
linux extension test	2m 3s
gcc build & test with asan	9m 43s
benchmark / benchmark	8m 46s
windows extension test	1m 46s
macos extension test	3m 56s
	2h 23m 53s

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