Update Graph and Subgraph name

[Kyle-Ye]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 38.88889% with 11 lines in your changes missing coverage. Please review.

Project coverage is 15.80%. Comparing base (ae33121) to head (7b3ca1c).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
.../OpenGraph/Attribute/RuleContext/RuleContext.swift	0.00%	3 Missing ⚠️
...rces/OpenGraph/Attribute/Attribute/Attribute.swift	50.00%	2 Missing ⚠️
Sources/OpenGraph/Attribute/Rule/Rule.swift	0.00%	2 Missing ⚠️
...ources/OpenGraph/Attribute/Rule/StatefulRule.swift	0.00%	2 Missing ⚠️
Sources/OpenGraph/Graph/Subgraph.swift	71.42%	2 Missing ⚠️

Additional details and impacted files

@@ Coverage Diff @@## main #125 +/- ##
=======================================
Coverage 15.80% 15.80% =======================================
Files 25 25 Lines 620 620 =======================================
Hits 98 98 Misses 522 522 

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