Bump actions/checkout from 5 to 6 (#2694)

Author: dependabot[bot]

.github/workflows/codeql-analysis.yml

@@ -36,7 +36,7 @@ jobs:
         # https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#changing-the-languages-that-are-analyzed
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
     # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL

.github/workflows/python-package.yml

@@ -52,7 +52,7 @@ jobs:
             kafka: "4.0.0"
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up Python ${{ matrix.python }}
         uses: actions/setup-python@v6
         with: