gdrive: Init drive if corpora property value requested.

[maxhora]

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[shcheklein]

@efiop good to merge I think.

[codecov]

Codecov Report

Merging #3252 into master will decrease coverage by 0.13%.
The diff coverage is 80%.

@@            Coverage Diff             @@
##           master    #3252      +/-   ##
==========================================
- Coverage   92.59%   92.46%   -0.14%     
==========================================
  Files         139      139              
  Lines        8764     8768       +4     
==========================================
- Hits         8115     8107       -8     
- Misses        649      661      +12

Impacted Files	Coverage Δ
dvc/remote/gdrive.py	89.55% <80%> (-0.3%)	⬇️
dvc/compat.py	16.66% <0%> (-55.56%)	⬇️
dvc/version.py	83.33% <0%> (-2.78%)	⬇️

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[efiop]

@shcheklein Waiting for the tests to pass and will merge. And, I guess, will release a new version...

[shcheklein]

yep, let's release a new one if you don't mind.