Update actions/setup-python action to v6.3.0

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -27,7 +27,7 @@ jobs:
         uses: azure/setup-helm@dda3372f752e03dde6b3237bc9431cdc2f7a02a2 # v5.0.0
         with:
           version: v4.2.0
-      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+      - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
         with:
           python-version: 3.14
       - name: Set up chart-testing
@@ -58,7 +58,7 @@ jobs:
         uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           fetch-depth: 0
-      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+      - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
         with:
           python-version: 3.14
       - name: Set up chart-testing
@@ -160,7 +160,7 @@ jobs:
           version: ${{ matrix.versions.kind }}
           node_image: kindest/node:${{ matrix.versions.k8s}}
           config: .github/kind_config.yaml
-      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+      - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
         with:
           python-version: 3.14
       - name: Set up chart-testing