Fixing the nightly build

[germa89]

Summary

Fix nightly documentation building issue.

Description

The log was taking forever and showing these messages:

E0218 04:10:56.185307217 3027 fork_posix.cc:70] Fork support is only compatible with the epoll1 and poll polling strategies
E0218 04:10:56.210220687 3027 fork_posix.cc:70] Fork support is only compatible with the epoll1 and poll polling strategies
E0218 04:10:56.235387859 3027 fork_posix.cc:70] Fork support is only compatible with the epoll1 and poll polling strategies
E0218 04:10:56.259668122 3027 fork_posix.cc:70] Fork support is only compatible with the epoll1 and poll polling strategies
E0218 04:10:56.288337332 3027 fork_posix.cc:70] Fork support is only compatible with the epoll1 and poll polling strategies
E0218 04:10:56.316517137 3027 fork_posix.cc:70] Fork support is only compatible with the epoll1 and poll polling strategies
E0218 04:10:56.344221037 3027 fork_posix.cc:70] Fork support is only compatible with the epoll1 and poll polling strategies
E0218 04:10:56.385278582 3027 fork_posix.cc:70] Fork support is only compatible with the epoll1 and poll polling strategies
E0218 04:10:56.410993360 3027 fork_posix.cc:70] Fork support is only compatible with the epoll1 and poll polling strategies

The log ends up with:

waiting for workers...
Error: The operation was canceled.

Fix

The issue was related to the last update of grpcio to 1.44. So we pinning it down to 1.43 during documentation building workflow only.

Notes

Closes #913

[codecov]

Codecov Report

Merging #916 (8237fdf) into main (a59baf6) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #916   +/-   ##
=======================================
  Coverage   72.49%   72.49%           
=======================================
  Files          39       39           
  Lines        5682     5682           
=======================================
  Hits         4119     4119           
  Misses       1563     1563           

[akaszynski]

Excellent detective work @germa89. We may consider making an upper limit in our setup.py, but for now this works.