fix: project root install is required for build

Author: yozachar

.github/workflows/build.yml

@@ -33,7 +33,7 @@ jobs:
           virtualenvs-in-project: true
       # install dependencies
       - name: Install dependencies
-        run: poetry install --no-interaction --no-ansi --no-root --only sphinx
+        run: poetry install --no-interaction --no-ansi --only sphinx
       # build package
       - name: Build package
         run: |