add python setup action

Author: dipinknair

.github/workflows/ci_cd.yml

@@ -44,10 +44,10 @@ jobs:
 
   doc-build:
     name: Documentation building
-    runs-on: public-ubuntu-latest-8-cores
+    runs-on: ubuntu-22.04
     timeout-minutes: 60
     container:
-      image: ghcr.io/ansys/mechanical:25.2.0
+      image: ghcr.io/ansys/mechanical:26.1_Dev
       options: --entrypoint /bin/bash
     needs: [style, doc-style]
 
@@ -57,19 +57,15 @@ jobs:
         uses: actions/checkout@v5
 
       - name: Set up Python
-        shell: bash
-        run: |
-          apt update
-          apt install lsb-release xvfb git curl make -y
-          curl -LsSf https://astral.sh/uv/install.sh | sh
-          export PATH="$HOME/.local/bin:$PATH"
-          uv python install python${{ env.MAIN_PYTHON_VERSION }}
-          uv venv /env
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ env.MAIN_PYTHON_VERSION }}
       - name: Install Python requirements
         run: |
+          python${{ env.MAIN_PYTHON_VERSION }} -m venv /env
           . /env/bin/activate
-          uv pip install --upgrade pip
-          uv pip install -r requirements/requirements_doc.txt
+          pip install --upgrade pip
+          pip install -r requirements/requirements_doc.txt
 
       - name: Build docs
         env: