chore: update actions/checkout action to v4 (#42)

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

Author: renovate[bot]

.github/workflows/deploy.yml

@@ -24,7 +24,7 @@ jobs:
 
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
       - name: Checkout repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup node
         uses: actions/setup-node@v3

.github/workflows/main.yml

@@ -24,7 +24,7 @@ jobs:
 
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
       - name: Checkout repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup node
         uses: actions/setup-node@v3