ci(gh-actions): ⬆️ update outdated GitHub Actions

Author: kikkomep

.github/workflows/release.yaml

@@ -66,9 +66,9 @@ jobs:
         steps:
             # Access the tag from the first workflow's outputs
             - name: ⬇️ Checkout code
-              uses: actions/checkout@v4
+              uses: actions/checkout@v6
             - name: 🐍 Set up Python
-              uses: actions/setup-python@v5
+              uses: actions/setup-python@v6
               with:
                   python-version: "3.x"
             - name: 🚧 Set up Python Environment

.github/workflows/testing.yaml

@@ -46,9 +46,9 @@ jobs:
         steps:
             # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
             - name: ⬇️ Checkout code
-              uses: actions/checkout@v4
+              uses: actions/checkout@v6
             - name: 🐍 Set up Python v${{ env.PYTHON_VERSION }}
-              uses: actions/setup-python@v5
+              uses: actions/setup-python@v6
               with:
                   python-version: ${{ env.PYTHON_VERSION }}
             - name: 🔽 Install flake8
@@ -65,9 +65,9 @@ jobs:
         needs: [lint]
         steps:
             - name: ⬇️ Checkout
-              uses: actions/checkout@v4
+              uses: actions/checkout@v6
             - name: 🐍 Set up Python v${{ env.PYTHON_VERSION }}
-              uses: actions/setup-python@v5
+              uses: actions/setup-python@v6
               with:
                   python-version: ${{ env.PYTHON_VERSION }}
             - name: 🔄 Upgrade pip