chore(devdeps): update actions/setup-python action to v6 (#5575)

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

Author: renovate[bot]

.github/workflows/fonts-upload.yml

@@ -20,7 +20,7 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set up Python environment
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.13.7"
       - uses: pnpm/[email protected]

.github/workflows/illustrations-upload.yml

@@ -21,7 +21,7 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set up Python environment
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.13.7"
       - uses: pnpm/[email protected]

.github/workflows/theme-upload.yml

@@ -21,7 +21,7 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set up Python environment
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.13.7"
       - uses: pnpm/[email protected]