CI: Update actions/setup-python to v5

Author: lazka

.github/workflows/main.yml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Setup Python (pip)
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: '3.10'
           architecture: 'x64'
@@ -24,7 +24,7 @@ jobs:
           python3 -m pip install --upgrade poetry==1.8.2
 
       - name: Setup Python (poetry)
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: '3.10'
           architecture: 'x64'