[ci] Add text file with GitHub commit hash to nightly builds (#5082)
[ci] Add text file with GitHub commit hash to nightly builds (#5082)

* Add text file with GitHub commit hash to nightly builds

* Update .vsts-ci.yml

* Revert "Update .vsts-ci.yml"

This reverts commit 75c41893982ab34ef9d7044d8dbf434be184c175.
microsoft/LightGBM,henry0312/LightGBM,henry0312/LightGBM,henry0312/LightGBM,henry0312/LightGBM,microsoft/LightGBM,microsoft/LightGBM,microsoft/LightGBM,microsoft/LightGBM,henry0312/LightGBM