Bump actions/setup-python from 6 to 6.3.0 in the github-actions group

Bumps the github-actions group with 1 update: [actions/setup-python](https://github.com/actions/setup-python).


Updates `actions/setup-python` from 6 to 6.3.0
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v6...v6.3.0)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-version: 6.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: github-actions
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/python-package.yml

@@ -92,7 +92,7 @@ jobs:
           fetch-depth: ${{ env.git-depth }}
       - name: Checkout submodules
         run: git submodule update --init --recursive --depth 1
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@v6.3.0
         with:
           python-version: "3.x"
       - name: Install build dependencies
@@ -134,7 +134,7 @@ jobs:
       - name: Checkout submodules
         run: git submodule update --init --recursive --depth 1
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@v6.3.0
         with:
           python-version: ${{ matrix.python-version }}
           architecture: ${{ matrix.architecture }}
@@ -220,7 +220,7 @@ jobs:
       - name: Checkout submodules
         run: git submodule update --init --depth 1
       - name: Set up Python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@v6.3.0
         with:
           python-version: "3.x"
       - name: Install Python dependencies
@@ -311,7 +311,7 @@ jobs:
           fetch-depth: ${{ env.git-depth }}
       - name: Checkout submodules
         run: git submodule update --init --recursive --depth 1
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@v6.3.0
         with:
           python-version: "3.x"
       - name: Install Python dependencies