Bump actions/setup-python from 5 to 6 in the gha-dependencies group (#63)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -28,7 +28,7 @@ jobs:
     - name: Checkout repository
       uses: actions/checkout@v5
     - name: Setup Python
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       id: setup-python
       with:
         python-version: '3.x'

.github/workflows/linkcheck.yml

@@ -25,7 +25,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v5
       - name: Setup Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         id: setup-python
         with:
           python-version: '3.x'