git config --global user.name "Lantrix"
git config --global user.email "myemail@mydomain.com" # Needs to match the email address of the GitHub GPG key

gh pr checkout 5190 # Your PR number
git rebase -S -i --rebase-merges master #GPG-sign commits on an interactive rebase - mark all commits to be signed as "edit"
git commit --amend '-S' --author "Lantrix <myemail@mydomain.com>"
git rebase --continue
# For each commit you need to resign
git commit --amend '-S' --author "Lantrix <myemail@mydomain.com>"
git rebase --continue
# Once all marked commits signed
git push --force
gh pr view --web