[CI] Update python version to 3.11 (#2151)

Co-authored-by: Florian <1technophile@users.noreply.github.com>

.github/workflows/build.yml

@@ -90,7 +90,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: "3.x"
+          python-version: "3.11"
       - name: Install platformio
         run: |
           python -m pip install --upgrade pip

.github/workflows/build_and_docs_to_dev.yml

@@ -17,7 +17,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: "3.7"
+          python-version: "3.11"
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip

.github/workflows/manual_docs.yml

@@ -15,7 +15,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: "3.7"
+          python-version: "3.11"
       - name: Install build dependencies
         run: |
           python -m pip install --upgrade pip

.github/workflows/release.yml

@@ -13,7 +13,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: "3.7"
+          python-version: "3.11"
       - name: Install platformio
         run: |
           python -m pip install --upgrade pip