fix: revisionForServerless

[miparnisari]

Fixing a bug wherein revisionForServerless was returning EOF because i hadn't written relationships for the first definition in the schema

[codecov-commenter]

Codecov Report

❌ Patch coverage is 79.16667% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 41.06%. Comparing base (a5cd8db) to head (7644451).

Files with missing lines	Patch %	Lines
internal/cmd/backup.go	79.16%	3 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #610      +/-   ##
==========================================
+ Coverage   40.77%   41.06%   +0.29%     
==========================================
  Files          38       38              
  Lines        4964     4977      +13     
==========================================
+ Hits         2024     2044      +20     
+ Misses       2693     2684       -9     
- Partials      247      249       +2     

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