refactor: switch `BooleanBufferBuilder` to `NullBufferBuilder` in sin… #185

Job	Run time
Run sqllogictests with the sqlite test suite	1h 4m 52s
linux build test	4m 28s
cargo test hash collisions (amd64)	23m 38s
cargo test 'extended_tests' (amd64)	17m 58s
	1h 50m 56s

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