Update actions/checkout action to v7 (#55)

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

Author: renovate[bot]

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7
 
       - name: Setup Node.js
         uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6

.github/workflows/codeql.yml

@@ -28,7 +28,7 @@ jobs:
           build-mode: none
     steps:
     - name: Checkout repository
-      uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
+      uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7
 
     - name: Initialize CodeQL
       uses: github/codeql-action/init@8aad20d150bbac5944a9f9d289da16a4b0d87c1e # v4