fix: ensure Python version is treated as a string

Author: juhannc

.github/workflows/flake8.yml

@@ -25,7 +25,7 @@ jobs:
       - name: Set up Python 3.10
         uses: actions/setup-python@v5
         with:
-          python-version: 3.10
+          python-version: "3.10"
       - name: Install uv
         uses: astral-sh/setup-uv@v7
       - name: Install Python dependencies

.github/workflows/mypy.yml

@@ -25,7 +25,7 @@ jobs:
       - name: Set up Python 3.10
         uses: actions/setup-python@v5
         with:
-          python-version: 3.10
+          python-version: "3.10"
       - name: Install uv
         uses: astral-sh/setup-uv@v7
       - name: Install Python dependencies

.github/workflows/pylint.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Set up Python 3.10
         uses: actions/setup-python@v5
         with:
-          python-version: 3.10
+          python-version: "3.10"
       - name: Install uv
         uses: astral-sh/setup-uv@v7
       - name: Install Python dependencies