CI: use pyarrow 0.17.1 instead of 0.17.0 for py37_macos build (#41948)
CI: use pyarrow 0.17.1 instead of 0.17.0 for py37_macos build (#41948)


gfyoung/pandas,datapythonista/pandas,jorisvandenbossche/pandas,rs2/pandas,pandas-dev/pandas,dsm054/pandas,gfyoung/pandas,datapythonista/pandas,jorisvandenbossche/pandas,gfyoung/pandas,dsm054/pandas,rs2/pandas,dsm054/pandas,pandas-dev/pandas,pandas-dev/pandas,jorisvandenbossche/pandas,pandas-dev/pandas,datapythonista/pandas,gfyoung/pandas,jorisvandenbossche/pandas,gfyoung/pandas,datapythonista/pandas,dsm054/pandas,rs2/pandas,dsm054/pandas,rs2/pandas