[Doc] Updated book theme to 1.1.2 (#1455)

Co-authored-by: Peter Günschmann<[email protected]>

.github/workflows/build-ubuntu-20.yml

@@ -40,9 +40,9 @@ jobs:
     - name: Install Python requirements
       shell: bash
       run: |
-        sudo apt-get -y install python3-dev python3-venv
+        sudo apt-get -y install python3.9-dev python3.9-venv
         mkdir ".venv_build"
-        python3 -m venv ".venv_build"
+        python3.9 -m venv ".venv_build"
         source ".venv_build/bin/activate"
         pip install --upgrade pip
         pip install wheel setuptools

doc/requirements.txt

@@ -1,16 +1,11 @@
 wheel
-sphinx-book-theme==0.3.3
-sphinx-tabs==3.3.1
+sphinx-book-theme==1.1.2
+sphinx-tabs==3.4.5
 PyGithub
 autodoc
-empy<=3.3.4
+empy
 semantic-version 
 exhale
 Jinja2
-sphinxcontrib-youtube<=1.2
 sphinxcontrib-apidoc
-sphinxcontrib-applehelp<=1.0.7        # 2024-01-15: Newer packages needs Sphinx 5 or up, but our old sphinx-book-theme 0.3.3 requires Sphinx 4
-sphinxcontrib-devhelp<=1.0.5          # 2024-01-15: Newer packages need Sphinx 5 or up, but our old sphinx-book-theme 0.3.3 requires Sphinx 4
-sphinxcontrib-htmlhelp<=2.0.4         # 2024-01-15: Newer packages (probably) need Sphinx 5 or up, but our old sphinx-book-theme 0.3.3 requires Sphinx 4
-sphinxcontrib-qthelp<=1.0.6           # 2024-01-15: Newer packages (probably) need Sphinx 5 or up, but our old sphinx-book-theme 0.3.3 requires Sphinx 4
-sphinxcontrib-serializinghtml<=1.1.9  # 2024-01-15: Newer packages (probably) need Sphinx 5 or up, but our old sphinx-book-theme 0.3.3 requires Sphinx 4
+sphinxcontrib-youtube