chore(deps): bump actions/checkout from 4 to 7

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 7.
- [Release notes](https://github.com/actions/checkout/releases)
- [Commits](actions/checkout@v4...v7)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
   validate:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - name: Validate JSON files
         run: |
           find . -name "*.json" -not -path "./.git/*" | while read f; do
@@ -32,7 +32,7 @@ jobs:
       run:
         working-directory: industrial-embodied-ai
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Set up Python 3.11
         uses: actions/setup-python@v5

.github/workflows/contributor-check.yml

@@ -27,7 +27,7 @@ jobs:
       github.actor != 'imran-siddique'
     steps:
       - name: Checkout org action
-        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           repository: agentrust-io/.github
           ref: main

.github/workflows/smoke.yml

@@ -17,7 +17,7 @@ jobs:
   smoke:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Set up Python 3.11
         uses: actions/setup-python@v5