sqlite: reserve local vectors space #2702

Job	Run time
Build slim tarball	1m 36s
x86_64-linux: with shared libraries	29m 4s
x86_64-darwin: with shared libraries	37m 44s
aarch64-darwin: with shared libraries	25m 15s
aarch64-linux: with shared libraries	23m 44s
	1h 57m 23s

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