fix: update the github link of map_loader

[a-maumau]

Description

This PR will add the autoware prefix to map_loader due to the changes in autowarefoundation/autoware.universe#8927 .

This PR should be merged after autowarefoundation/autoware.universe#8927 merged .

Tests performed

Not applicable.

Effects on system behavior

Not applicable.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 19.50%. Comparing base (6fc35a0) to head (7b8d2af).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #31   +/-   ##
=======================================
  Coverage   19.49%   19.50%           
=======================================
  Files          42       42           
  Lines        2852     2851    -1     
  Branches     1392     1391    -1     
=======================================
  Hits          556      556           
+ Misses       2296     2295    -1     

Flag	Coverage Δ		*Carryforward flag
differential	19.50% <ø> (+2.75%)	⬆️
total	19.50% <ø> (ø)		Carriedforward from 6fc35a0

*This pull request uses carry forward flags. Click here to find out more.

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