Update actions/setup-python action to v6 (#2087)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/build.yml

@@ -30,7 +30,7 @@ jobs:
         uses: gradle/actions/setup-gradle@v4
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: 3.13
 
@@ -118,7 +118,7 @@ jobs:
           ORG_GRADLE_PROJECT_signingInMemoryKeyPassword: ${{ secrets.GPG_SECRET_PASSPHRASE }}
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: 3.13 # See the pinned version in renovate.json too
 

.github/workflows/release.yml

@@ -45,7 +45,7 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: 3.13 # See the pinned version in renovate.json too