Fix publishing release notes

Author: dolfinus

.github/workflows/release.yml

@@ -94,6 +94,7 @@ jobs:
       run: |
         mkdir reports/
         pip install -e .
+        version=$(echo $GITHUB_REF_SLUG | sed -E "s/v(.*)/\1/")
         # lines 1 and 3 are empty, line 2 contains version number, line 4 contains release date
         changelog generate-md -c ./docs/conf.py CHANGELOG.rst -v $version | sed "1,4d" > reports/release.md