Update actions/checkout action to v7

.github/workflows/ci.yml

@@ -18,7 +18,7 @@ jobs:
     name: Unit testing and linting
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - uses: dtolnay/rust-toolchain@1.93.0
       - name: Install SQLite3
         run: sudo apt-get update && sudo apt-get install -y libsqlite3-dev

.github/workflows/publish.yml

@@ -22,7 +22,7 @@ jobs:
       json: ${{ steps.meta.outputs.json }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           ref: ${{ github.event.workflow_run.head_sha }}
           fetch-depth: 0
@@ -61,7 +61,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           ref: ${{ github.event.workflow_run.head_sha }}
           fetch-depth: 0