chore(deps): update actions/checkout action to v4 (#72)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/release.yml

@@ -13,7 +13,7 @@ jobs:
         with:
           release-type: simple
           package-name: hurl.nvim
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: tag stable versions
         if: ${{ steps.release.outputs.release_created }}
         run: |