Bump actions/setup-python from 4 to 5 (#1143)

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 4 to 5.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](https://github.com/actions/setup-python/compare/v4...v5)

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

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

.github/workflows/build-firmware.yml

@@ -27,7 +27,7 @@ jobs:
         key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
 
     - name: Set up Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
 
     - name: Install PlatformIO
       run: |

.github/workflows/unit-tests.yml

@@ -26,7 +26,7 @@ jobs:
         platform: x32
 
     - name: Set up Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: '3.7'