Update workflows to actions/setup-python@v6

Author: mathieucarbou

.github/workflows/ci.yml

@@ -96,7 +96,7 @@ jobs:
             ~/.platformio
 
       - name: Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.x"
 

.github/workflows/pre-commit.yml

@@ -34,7 +34,7 @@ jobs:
           GH_TOKEN: ${{ github.token }}
 
       - name: Set up Python 3
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           cache-dependency-path: pre-commit.requirements.txt
           cache: "pip"

.github/workflows/publish-pio-registry.yml

@@ -47,7 +47,7 @@ jobs:
             ~/.platformio
 
       - name: Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.x"