chore(deps): upgrade actions/setup-python action to v6 (#96)

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

Author: renovate[bot]

.github/workflows/docs-checks.yml

@@ -38,7 +38,7 @@ jobs:
       - name: "Checkout Repository"
         uses: actions/checkout@v5
       - name: "Setup Python"
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.13"
       - name: "Install uv"

.github/workflows/docs-localization-download.yml

@@ -17,7 +17,7 @@ jobs:
       - name: "Checkout Repository"
         uses: actions/checkout@v5
       - name: "Setup Python"
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.13"
       - name: "Install uv"

.github/workflows/docs-localization-upload.yml

@@ -22,7 +22,7 @@ jobs:
       - name: "Checkout Repository"
         uses: actions/checkout@v5
       - name: "Setup Python"
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.13"
       - name: "Install uv"

.github/workflows/lib-checks.yml

@@ -34,7 +34,7 @@ jobs:
       - name: "Checkout Repository"
         uses: actions/checkout@v5
       - name: "Setup Python"
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.13"
       - name: "Install uv"
@@ -53,7 +53,7 @@ jobs:
       - name: "Checkout Repository"
         uses: actions/checkout@v5
       - name: "Setup Python"
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.13"
       - name: "Install uv"
@@ -73,7 +73,7 @@ jobs:
       - name: "Checkout Repository"
         uses: actions/checkout@v5
       - name: "Setup Python"
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.13"
       - name: "Install uv"

.github/workflows/sync-guild-features.yml

@@ -21,7 +21,7 @@ jobs:
         with:
           fetch-depth: 0  # Fetch all history for all branches
       - name: "Setup Python"
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.13"
       - name: "Install uv"