ci: use v4 of actions/checkout

.github/workflows/ci.yml

@@ -27,7 +27,7 @@ jobs:
     runs-on: "ubuntu-latest"
     steps:
       - name: "Check out the repo"
-        uses: "actions/checkout@v3"
+        uses: "actions/checkout@v4"
 
       - name: "Install Bun"
         uses: "oven-sh/setup-bun@v1"

.github/workflows/create.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: "ubuntu-latest"
     steps:
       - name: "Check out the repo"
-        uses: "actions/checkout@v3"
+        uses: "actions/checkout@v4"
 
       - name: "Update package.json"
         env: