Update dependency python to 3.13

Author: renovate[bot]

.github/workflows/docs.yml

@@ -16,7 +16,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.7
+          python-version: 3.13
       - name: Install Tox
         run: pip install tox
       - name: Run Tox

.github/workflows/tox-tests.yml

@@ -12,7 +12,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.9
+          python-version: 3.13
       - name: Install Tox
         run: pip install tox
       - name: Run Tox
@@ -26,7 +26,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.9
+          python-version: 3.13
       - name: Install Tox
         run: pip install tox
       - name: Run Tox
@@ -40,7 +40,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.9
+          python-version: 3.13
       - name: Install Tox
         run: pip install tox
       - name: Run Tox
@@ -54,7 +54,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.9
+          python-version: 3.13
       - name: Install Tox
         run: pip install tox
       - name: Run Tox
@@ -70,7 +70,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.9
+          python-version: 3.13
       - name: Install Tox
         run: pip install tox
       - name: Run Tox
@@ -84,7 +84,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.9
+          python-version: 3.13
       - name: Install Tox
         run: pip install tox
       - name: Run Tox
@@ -105,7 +105,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.9
+          python-version: 3.13
       - name: Install Tox
         run: pip install tox
       - name: Run Tox