ci: bump actions/checkout from 4.2.2 to 6.0.2

.github/workflows/nightly.yml

@@ -26,7 +26,7 @@ jobs:
       has_commits: ${{ steps.check.outputs.has_commits }}
     steps:
       - name: Checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
         with:
           fetch-depth: 0
 
@@ -61,10 +61,10 @@ jobs:
     runs-on: ${{ matrix.runner }}
     steps:
       - name: Checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
 
       - name: Checkout provable-contracts (path dep)
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
         with:
           repository: paiml/provable-contracts
           path: provable-contracts
@@ -79,7 +79,7 @@ jobs:
         run: New-Item -ItemType Junction -Path "$env:GITHUB_WORKSPACE\..\provable-contracts" -Target "$env:GITHUB_WORKSPACE\provable-contracts" -Force
 
       - name: Checkout aprender (path dep)
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
         with:
           repository: paiml/aprender
           path: aprender
@@ -156,7 +156,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
 
       - name: Download all artifacts
         uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093  # v4.3.0

.github/workflows/release.yml

@@ -44,7 +44,7 @@ jobs:
       version: ${{ steps.parse.outputs.version }}
     steps:
       - name: Checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
 
       - name: Parse tag and verify version
         id: parse
@@ -102,7 +102,7 @@ jobs:
     runs-on: [self-hosted, clean-room]
     steps:
       - name: Checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
 
       - name: Authenticate to crates.io (OIDC)
         uses: rust-lang/crates-io-auth-action@b7e9a28eded4986ec6b1fa40eeee8f8f165559ec  # v1.0.3