Update release.yml

Author: lzchen

.github/workflows/release.yml

@@ -46,13 +46,13 @@ jobs:
           echo "PRIOR_VERSION_WHEN_PATCH=$prior_version_when_patch" >> $GITHUB_ENV
 
       - run: |
-        if [[ -z $PRIOR_VERSION_WHEN_PATCH ]]; then
-          # not making a patch release
-          if ! grep --quiet "^## Version ${STABLE_VERSION}/${UNSTABLE_VERSION} " CHANGELOG.md; then
-            echo the pull request generated by prepare-release-branch.yml needs to be merged first
-            exit 1
+          if [[ -z $PRIOR_VERSION_WHEN_PATCH ]]; then
+            # not making a patch release
+            if ! grep --quiet "^## Version ${STABLE_VERSION}/${UNSTABLE_VERSION} " CHANGELOG.md; then
+              echo the pull request generated by prepare-release-branch.yml needs to be merged first
+              exit 1
+            fi
           fi
-        fi
 
       # check out main branch to verify there won't be problems with merging the change log
       # at the end of this workflow