build(deps): bump actions/checkout from 4 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Commits](actions/checkout@v4...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/deploy.yml

@@ -12,7 +12,7 @@ jobs:
       contents: read
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: actions/setup-node@v4

.github/workflows/go-mod-validation.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ github.event_name == 'pull_request' }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Validate go.mod
         uses: smartcontractkit/.github/apps/go-mod-validator@845035d315a5067b67c951deab51db019aaf7137 # go-mod-validator/v1

.github/workflows/pull-request-main.yml

@@ -90,7 +90,7 @@ jobs:
           sui --version
 
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Compute Solana programs cache key
         id: solana-programs-cache-key

.github/workflows/push-tag-release.yml

@@ -70,7 +70,7 @@ jobs:
     environment: build-publish
     steps:
       - name: Checkout repository
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
 
       - name: Set tag for Slack notification
         run: echo "TAG=${{ github.ref_name }}" >> "$GITHUB_ENV"

.github/workflows/test-deploy.yml

@@ -11,7 +11,7 @@ jobs:
     name: Test deployment
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: actions/setup-node@v4