Added automatical GCP credential load in kite terraform

[vshatravenko]

No description provided.

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@d4fd44f). Click here to learn what that means.
The diff coverage is 0%.

@@            Coverage Diff            @@
##             master     #125   +/-   ##
=========================================
  Coverage          ?   40.45%           
=========================================
  Files             ?       11           
  Lines             ?      220           
  Branches          ?        0           
=========================================
  Hits              ?       89           
  Misses            ?      131           
  Partials          ?        0

Impacted Files	Coverage Δ
lib/kite/terraform.rb	25.8% <0%> (ø)

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