Bump the dependencies group with 1 update (#123)

Bumps the dependencies group with 1 update: [actions/cache](https://github.com/actions/cache).


Updates `actions/cache` from 3 to 4
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v3...v4)

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

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

.github/workflows/auto-template-creation.yml

@@ -54,7 +54,7 @@ jobs:
           owner: vapor
           repositories: ${{ matrix.repository }}
       - name: Get cached toolbox
-        uses: actions/cache/restore@v3
+        uses: actions/cache/restore@v4
         with:
           key: ${{ needs.cache-toolbox.outputs.cache_key }}
           path: toolbox

.github/workflows/test-template.yml

@@ -28,7 +28,7 @@ jobs:
         run: 'echo "tag=$(curl -fsSL "https://api.github.com/repos/vapor/toolbox/releases/latest" | jq -r .tag_name)" >>"${GITHUB_OUTPUT}"'
       - name: Check cache
         id: check
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           key: ${{ env.SWIFT_IMAGE }}-vapor-toolbox-${{ steps.latest.outputs.tag }}
           path: toolbox
@@ -69,7 +69,7 @@ jobs:
     needs: cache-toolbox
     steps:
       - name: Get cached toolbox
-        uses: actions/cache/restore@v3
+        uses: actions/cache/restore@v4
         with:
           key: ${{ needs.cache-toolbox.outputs.cache_key }}
           path: toolbox