add deployment job to deploy to GKE Meghalaya

[sainak]

Proposed Changes

• add deployment job to deploy to GKE Meghalaya

Merge Checklist

• Tests added/fixed
• Update docs in /docs
• Linting Complete
• Any other necessary step

Only PR's with test cases included and passing lint and test pipelines will be reviewed

@coronasafe/care-backend-maintainers @coronasafe/care-backend-admins

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (cadfebf) 60.43% compared to head (4f4b7f1) 60.43%.
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1709   +/-   ##
=======================================
  Coverage   60.43%   60.43%           
=======================================
  Files         210      210           
  Lines       11473    11473           
  Branches     1630     1630           
=======================================
  Hits         6934     6934           
  Misses       4307     4307           
  Partials      232      232           

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