Does installing it help?

Author: sequoiap

.github/workflows/release.yml

@@ -25,10 +25,14 @@ jobs:
       - name: Build
         run: |
           python -m build
+          pip install -e .
+      - name: Get version number
+        id: get_version
+        run: echo "VERSION=$(python3 -c 'import pyrolab; print(pyrolab.__version__)')" >> $GITHUB_ENV
       - name: Load Release text
         id: get_text
         run: |
-          BODY=$(cat ./docs/changelog/${{ github.ref_name }}-changelog.md)
+          BODY=$(cat ./docs/changelog/${{ env.VERSION }}-changelog.md)
           BODY="${BODY//'%'/'%25'}"
           BODY="${BODY//$'\n'/'%0A'}"
           BODY="${BODY//$'\r'/'%0D'}"
@@ -45,7 +49,7 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # This token is provided by Actions, you do not need to create your own token
         with:
           tag_name: ${{ github.ref }}
-          release_name: PyroLab ${{ steps.get_version.outputs.VERSION }}
-          body: ${{ steps.get_text.outputs.BODY }}
+          release_name: PyroLab ${{ env.VERSION }}
+          body: ${{ env.BODY }}
           draft: false
           prerelease: false