arrow

MINOR: [Python][Docs] Fixing typos in python/pyarrow/array.pxi (#34286)

### Rationale for this change

"is not passed" isn't grammatically correct here.

### Are these changes tested?

n/a - minor doc change

### Are there any user-facing changes?

No

Authored-by: Leo Shklovskii <leo@thermopylae.net>
Signed-off-by: Sutou Kouhei <kou@clear-code.com>