fix(autoware_msgs): fix links to issues in CHANGELOG.rst files

[esteve]

Description

This PR fixes the links to the issues in the CHANGELOG.rst file

How was this PR tested?

Notes for reviewers

None.

Effects on system behavior

None.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 0.00%. Comparing base (4c3a193) to head (90ccf8f).
Report is 11 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##            main   #108      +/-   ##
=======================================
  Coverage   0.00%      0              
=======================================
  Files        540      0     -540     
  Lines      26380      0   -26380     
=======================================
+ Misses     26380      0   -26380     

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