Add new graphql qeury

[kimhanbeom]

This PR is for a feature that is only used in rio projects.

• Added graphql queries for triage and outliers.
• Added graphql queries for semi-supervised model.
• Added agent_id for filtering agent id to EventListWithTriageFilterInput.
• Added new fields to the sampling policy's enum Interval.

[codecov-commenter]

Codecov Report

Attention: 626 lines in your changes are missing coverage. Please review.

Comparison is base (2e85115) 47.08% compared to head (35ce03f) 44.45%.

Files	Patch %	Lines
src/graphql/outlier.rs	0.00%	283 Missing ⚠️
src/graphql/event.rs	2.19%	223 Missing ⚠️
src/graphql/semi_model.rs	3.80%	101 Missing ⚠️
src/graphql/triage/policy.rs	5.88%	16 Missing ⚠️
src/graphql.rs	0.00%	3 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##              rio     #112      +/-   ##
==========================================
- Coverage   47.08%   44.45%   -2.63%     
==========================================
  Files          65       66       +1     
  Lines       10432    11069     +637     
==========================================
+ Hits         4912     4921       +9     
- Misses       5520     6148     +628     

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