Bump actions/setup-python from 4 to 5 (#12)

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

.github/workflows/ci.yml

@@ -49,7 +49,7 @@ jobs:
             libc6-dev libc6-dev-i386 linux-libc-dev \
             linux-libc-dev:i386 lib32z1-dev ${{ matrix.cc }}
     
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         name: Setup Python 3.9
         with:
           python-version: 3.9