fix: typo in metrics.rs

[Pixels67]

Changes

Change 'shutdown_resut' to 'shutdown_result'

Merge requirement checklist

• CONTRIBUTING guidelines followed

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: Pixels67 / name: Pixels (4f1e59f, f86fccf)
• ✅ login: cijothomas / name: Cijo Thomas (7cb1b25)

[lalitb]

Thanks, LGTM pending EasyCLA :)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.6%. Comparing base (36cbe8d) to head (f86fccf).
Report is 1 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #2761   +/-   ##
=====================================
  Coverage   79.6%   79.6%           
=====================================
  Files        123     123           
  Lines      23034   23034           
=====================================
+ Hits       18356   18357    +1     
+ Misses      4678    4677    -1     

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