[BugFix + CI] install pandoc package for building documentation

Author: Pabloo22

.github/workflows/publish-docs.yml

@@ -23,6 +23,8 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install poetry==1.7
+        sudo apt-get update
+        sudo apt-get install -y pandoc
         poetry install --with notebooks --with docs
 
     - name: Build Documentation