chore(deps): update actions/setup-python action to v6 (#67)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/build.yml

@@ -25,7 +25,7 @@ jobs:
         with:
           fetch-depth: 0 #full history
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.13"
       - name: Install and configure Poetry (this should ideally be done from pyproject.toml but..)

.github/workflows/lint.yml

@@ -10,7 +10,7 @@ jobs:
       - name: Check out source repository
         uses: actions/checkout@v5
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.13"
       - name: Install and configure Poetry (this should ideally be done from pyproject.toml but..)