fix: PDB GQL schema

[maciaszczykm]

No description provided.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 35.94%. Comparing base (1e8572f) to head (e1c6c7d).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #10013   +/-   ##
=======================================
  Coverage   35.94%   35.94%           
=======================================
  Files         306      306           
  Lines       14711    14711           
  Branches      201      183   -18     
=======================================
  Hits         5288     5288           
- Misses       9146     9199   +53     
+ Partials      277      224   -53