add require attribute to target param on releases

[techknowlogick]

Fix #5471

commands I ran to get to this point:

cd go/src/code.gitea.io/gitea
git pull
git checkout -b issue-5471
dep ensure -update code.gitea.io/sdk
git add .
git commit -m "update sdk vendor"
git push origin issue-5471

[techknowlogick]

blocked by #5419

[codecov-io]

Codecov Report

Merging #5477 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #5477   +/-   ##
=======================================
  Coverage   37.51%   37.51%           
=======================================
  Files         322      322           
  Lines       47458    47458           
=======================================
  Hits        17804    17804           
  Misses      27097    27097           
  Partials     2557     2557

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[techknowlogick]

Closing as it breaks drone gitea plugin.