Utils to static

[hmlli]

turn the utils function in MigrationGraphDoc into a static method, so that the MigrationGraphDoc object doesnt have to be initiated to use this method. Cleaner for use case of pulling data from db.

[codecov-commenter]

Codecov Report

Patch coverage: 100.00% and no project coverage change

Comparison is base (27727cd) 91.50% compared to head (541420c) 91.50%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #673   +/-   ##
=======================================
  Coverage   91.50%   91.50%           
=======================================
  Files         144      144           
  Lines       10660    10658    -2     
=======================================
- Hits         9754     9753    -1     
+ Misses        906      905    -1     

Impacted Files	Coverage Δ
emmet-core/emmet/core/mobility/migrationgraph.py	94.52% <100.00%> (+0.60%)	⬆️

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[hmlli]

@munrojm Hi Jason! just a small change in a utils function within MigrationGraphDoc. Basically in the usage case, the function is almost never used with the instance initiated, so I changed it to a static method. Thanks!

[munrojm]

Sounds good! Thanks @hmlli.