fix an incorrect link in changelog.

[ruotianluo]

What does this PR do?

fix an incorrect link in changelog. #7437

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[codecov]

Codecov Report

Merging #7850 (ffeff21) into master (1da1898) will decrease coverage by 6%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #7850    +/-   ##
=======================================
- Coverage      93%     87%    -6%     
=======================================
  Files         202     202            
  Lines       13050   13050            
=======================================
- Hits        12085   11335   -750     
- Misses        965    1715   +750