[build scripts] update

[stas00]

fill-in the missing info for the build script as provided by the searcher.

(this is also an experiment in re-using the branch for a follow up PR, it shows the old commits that have been merged already, but the diff is new. not sure if there is a better way.)

[codecov]

Codecov Report

Merging #7190 into master will decrease coverage by 2.21%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #7190      +/-   ##
==========================================
- Coverage   80.86%   78.65%   -2.22%     
==========================================
  Files         169      169              
  Lines       32293    32293              
==========================================
- Hits        26114    25399     -715     
- Misses       6179     6894     +715     

Impacted Files	Coverage Δ
src/transformers/tokenization_xlm.py	16.26% <0.00%> (-66.67%)	⬇️
src/transformers/modeling_tf_distilbert.py	33.57% <0.00%> (-65.72%)	⬇️
src/transformers/pipelines.py	25.85% <0.00%> (-55.15%)	⬇️
src/transformers/tokenization_mbart.py	57.14% <0.00%> (-39.69%)	⬇️
src/transformers/tokenization_funnel.py	62.79% <0.00%> (-34.89%)	⬇️
src/transformers/optimization_tf.py	33.33% <0.00%> (-24.33%)	⬇️
src/transformers/modeling_lxmert.py	70.01% <0.00%> (-20.75%)	⬇️
src/transformers/modeling_tf_auto.py	57.28% <0.00%> (-15.08%)	⬇️
src/transformers/data/processors/squad.py	13.76% <0.00%> (-14.38%)	⬇️
src/transformers/modeling_transfo_xl_utilities.py	52.98% <0.00%> (-13.44%)	⬇️
... and 19 more

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[stas00]

I'm going to add it here #7153 where it really belongs