Bump actions/setup-python from 5 to 6

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 5 to 6.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v5...v6)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -165,7 +165,7 @@ jobs:
         with:
           submodules: true
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.12"
       - name: "Setup Python environment"
@@ -229,7 +229,7 @@ jobs:
       - name: "Check out repository code"
         uses: "actions/checkout@v5"
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
       - name: "Setup environment"
@@ -278,7 +278,7 @@ jobs:
       - name: "Check out repository code"
         uses: "actions/checkout@v5"
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.12"
       - name: "Set environment variables"
@@ -331,7 +331,7 @@ jobs:
   #         submodules: true
 
   #     - name: Set up Python
-  #       uses: actions/setup-python@v5
+  #       uses: actions/setup-python@v6
   #       with:
   #         python-version: "3.12"
 

.github/workflows/publish-pypi.yml

@@ -37,7 +37,7 @@ jobs:
     needs: prepare-environment
     steps:
       - name: "Set up Python"
-        uses: "actions/setup-python@v5"
+        uses: "actions/setup-python@v6"
         with:
           python-version: "3.12"
 

.github/workflows/release.yml

@@ -26,7 +26,7 @@ jobs:
           submodules: true
 
       - name: "Set up Python"
-        uses: "actions/setup-python@v5"
+        uses: "actions/setup-python@v6"
         with:
           python-version: "3.12"