Update actions/setup-python action to v5.6.0

Author: renovate[bot]

.github/workflows/build.yml

@@ -27,7 +27,7 @@ jobs:
           node-version: '12.x'
 
       - name: Setup Python
-        uses: actions/setup-python@v5.3.0
+        uses: actions/setup-python@v5.6.0
 
       - name: Setup Java
         uses: actions/setup-java@v4

.github/workflows/pr_check.yml

@@ -15,7 +15,7 @@ jobs:
           node-version: '12.x'
 
       - name: Setup Python
-        uses: actions/setup-python@v5.3.0
+        uses: actions/setup-python@v5.6.0
 
       - name: Setup Java
         uses: actions/setup-java@v4