feat: Support snake case security_context in COMPILE_CONTEXT

[keydunov]

Check List

• Tests has been run in packages where changes made if available
• Linter has been run for changed code
• Tests for the changes have been added if not covered yet
• Docs have been added / updated if required

Issue Reference this PR resolves

[For example #12]

Description of Changes Made (if issue reference is not provided)

[Description goes here]

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.01 🎉

Comparison is base (9863c35) 47.23% compared to head (49d6cba) 47.24%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6519      +/-   ##
==========================================
+ Coverage   47.23%   47.24%   +0.01%     
==========================================
  Files         154      154              
  Lines       20312    20316       +4     
  Branches     5237     5238       +1     
==========================================
+ Hits         9594     9598       +4     
  Misses       9879     9879              
  Partials      839      839              

Flag	Coverage Δ
cube-backend	47.24% <100.00%> (+0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...schema-compiler/src/compiler/DataSchemaCompiler.js	54.45% <100.00%> (+0.92%)	⬆️

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