chore(deps): update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/Release.yml

@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           # This makes Actions fetch all Git history so that Changesets can generate changelogs with the correct commits
           fetch-depth: 0

.github/workflows/test.yml

@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Setup Node.js
         uses: actions/setup-node@v4
       - uses: pnpm/action-setup@v4
@@ -38,7 +38,7 @@ jobs:
         node: [18, 20, 22]
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Setup Node.js ${{ matrix.node }}
         uses: actions/setup-node@v4
         with:
@@ -62,7 +62,7 @@ jobs:
         node: [20]
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Setup Node.js ${{ matrix.node }}
         uses: actions/setup-node@v4
         with: