Update Google Project credentials to run tests

[maxhora]

Fixes #3157

Secure env variable should be set by Travis before this PR is get merged.

[shcheklein]

👍

[shcheklein]

@Maxris why is it WIP?

[maxhora]

@shcheklein I've put [WIP] only to ensure that GDrive tests on Travis are running now (env variable should be set), so this PR will able to close the Issue #3157 as well.

[efiop]

@Maxris So is it still WIP? The env vars are only available for native branches as they are marked as secure ones, so this PR still shows that the tests are getting skipped. You could create a new PR from an upstream branch if you want to verify that tests are being ran before merging the PR.

[maxhora]

@efiop thanks! I will check shortly. (Previously there was a bug or trick at GitHub that I can push branch with the same name to upstream and GitHub automatically will start treat this PR as from upstream's branch).

[codecov]

Codecov Report

Merging #3216 into master will increase coverage by 0.97%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #3216      +/-   ##
==========================================
+ Coverage   91.67%   92.65%   +0.97%     
==========================================
  Files         139      139              
  Lines        8681     8681              
==========================================
+ Hits         7958     8043      +85     
+ Misses        723      638      -85

Impacted Files	Coverage Δ
dvc/remote/base.py	95.4% <0%> (+0.19%)	⬆️
dvc/remote/gdrive.py	93.25% <0%> (+47.19%)	⬆️

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[maxhora]

@efiop not sure how it works, but pushing of the same branch to upstream have restart Travis build automatically and secured variables are in place this time. Can see that gdrive tests are passing, so please merge this PR

[gw1] [ 19%] PASSED tests/func/test_data_cloud.py::TestRemoteGDrive::test 
[gw0] [ 20%] PASSED tests/func/test_data_cloud.py::TestRemoteGDriveCLI::test 

[efiop]

Thanks @Maxris ! 🙏