build(deps): bump actions/checkout from 2 to 3

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v2...v3)

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

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

.github/workflows/build.yml

@@ -81,7 +81,7 @@ jobs:
           echo ::set-output name=apps_ref::$APPS_REF
 
       - name: Checkout nuttx repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           repository: apache/incubator-nuttx
           ref: ${{ steps.gittargets.outputs.os_ref }}
@@ -91,7 +91,7 @@ jobs:
         run: git -C sources/nuttx fetch --tags
 
       - name: Checkout apps repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           repository: apache/incubator-nuttx-apps
           ref: ${{ steps.gittargets.outputs.apps_ref }}

.github/workflows/check.yml

@@ -28,14 +28,14 @@ jobs:
 
     steps:
       - name: Checkout nuttx repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           repository: apache/incubator-nuttx
           path: nuttx
           fetch-depth: 0
 
       - name: Checkout apps repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           repository: apache/incubator-nuttx-apps
           path: apps

.github/workflows/lint.yml

@@ -17,7 +17,7 @@ jobs:
     name: Lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 0
       - run: mkdir super-linter.report