refactor: apply suggestions from code review

* remove `changed` file
* simplify main.yaml

Co-authored-by: Michael Seifert <m.seifert@digitalernachschub.de>

Author: dzhalaevd

.github/workflows/main.yml

@@ -200,18 +200,9 @@ jobs:
       run: |
         TAG_NAME="${GITHUB_REF#refs/tags/}"
 
-        IS_DRAFT=$(gh release view "${TAG_NAME}" --json isDraft --jq '.isDraft' 2>/dev/null || echo "")
-        if [ -n "${IS_DRAFT}" ]; then
-          if [ "${IS_DRAFT}" = "false" ]; then
-            exit 0
-          fi
-          gh release edit "${TAG_NAME}" \
-            --title "pytest-asyncio ${VERSION}" \
-            --notes-file release-notes.md \
-            --draft
-
-          gh release upload "${TAG_NAME}" dist/* --clobber
-        else
+        gh release view "${TAG_NAME}" >/dev/null
+        RELEASE_EXISTS=$?
+        if [ $RELEASE_EXISTS -ne 0 ]; then
           gh release create "${TAG_NAME}" \
             --title "pytest-asyncio ${VERSION}" \
             --notes-file release-notes.md \