Add Moscow GIBDD region

[Zaboday]

Description

Added

• GIBDD region code for Moscow region - 977

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (1ef0ff7) to head (54590ea).

Additional details and impacted files

@@             Coverage Diff             @@
##              master       #51   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity        15        15           
===========================================
  Files              2         2           
  Lines             31        31           
===========================================
  Hits              31        31           

Flag	Coverage Δ
php	100.00% <ø> (ø)

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