Bump actions/setup-python from 4 to 5 (#127)

Author: dependabot[bot]

.github/workflows/main.yml

@@ -39,7 +39,7 @@ jobs:
       run: |
         jackd --no-realtime -d dummy &
     - name: Set up Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: "3"
     - name: Double-check Python version
@@ -60,7 +60,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Set up Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: "3"
     - name: Double-check Python version