Build(deps): Bump actions/checkout from 3 to 4 (#362)

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/dotnetcore.yml

@@ -32,7 +32,7 @@ jobs:
       SNAPX_VERSION: ${{ steps.set-version.outputs.SNAPX_VERSION }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -61,7 +61,7 @@ jobs:
       SNAPX_VERSION: ${{ needs.setup.outputs.SNAPX_VERSION }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           lfs: true
           submodules: true
@@ -134,7 +134,7 @@ jobs:
       SNAPX_VERSION: ${{ needs.setup.outputs.SNAPX_VERSION }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           lfs: true
           submodules: true
@@ -193,7 +193,7 @@ jobs:
       SNAPX_VERSION: ${{ needs.setup.outputs.SNAPX_VERSION }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           lfs: true