2.1.81

Fix concurrency issues in release

Detail
======
 - Tag was calculated in `Compute tag name` step and `Create release`
   step use that tag, so the second action may fail if new commit
   created before previous commit's action is not finished.
   - ref: https://github.com/progit/progit2-ko/actions/runs/3924407747/jobs/6708646550

2.1.80

Fix concurrency issues in release

Detail
======
 - Tag was calculated in `Compute tag name` step and `Create release`
   step use that tag, so the second action may fail if new commit
   created before previous commit's action is not finished.
   - ref: https://github.com/progit/progit2-ko/actions/runs/3924407747/jobs/6708646550