GitHub actions: fix testing-mac.yml python problem

[leleliu008]

No description provided.

[codecov]

Codecov Report

Base: 82.83% // Head: 82.84% // Increases project coverage by +0.00% 🎉

Coverage data is based on head (97e1f3e) compared to base (fe02d29).
Patch coverage: 81.08% of modified lines in pull request are covered.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3609   +/-   ##
=======================================
  Coverage   82.83%   82.84%           
=======================================
  Files         223      223           
  Lines       54212    54280   +68     
=======================================
+ Hits        44907    44966   +59     
- Misses       9305     9314    +9     

Impacted Files	Coverage Δ
optlib/gperf.c	0.00% <ø> (ø)
optlib/man.c	0.00% <ø> (ø)
optlib/mesonOptions.c	0.00% <ø> (ø)
optlib/pod.c	0.00% <ø> (ø)
optlib/puppetManifest.c	0.00% <ø> (ø)
optlib/rdoc.c	100.00% <ø> (ø)
optlib/rpmMacros.c	0.00% <ø> (ø)
optlib/systemtap.c	0.00% <0.00%> (ø)
main/lregex.c	84.37% <83.78%> (-0.04%)	⬇️
dsl/optscript.c	87.98% <100.00%> (+0.30%)	⬆️
... and 2 more

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[leleliu008]

I touched other commit in this pr, I file a new one(#3610), so close this one.