Bump actions/cache from 2.1.7 to 3 (#16)

Bumps [actions/cache](https://github.com/actions/cache) from 2.1.7 to 3.
- [Release notes](https://github.com/actions/cache/releases)
- [Commits](actions/cache@v2.1.7...v3)

---
updated-dependencies:
- dependency-name: actions/cache
  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/build.yml

@@ -13,7 +13,7 @@ jobs:
         id: composer-cache
         run: echo "::set-output name=dir::$(composer config cache-files-dir)"
       - name: Cache composer dependencies
-        uses: actions/cache@v2.1.7
+        uses: actions/cache@v3
         with:
           path: ${{ steps.composer-cache.outputs.dir }}
           key: cs-composer-${{ hashFiles('**/composer.json') }}
@@ -40,7 +40,7 @@ jobs:
         id: composer-cache
         run: echo "::set-output name=dir::$(composer config cache-files-dir)"
       - name: Cache composer dependencies
-        uses: actions/cache@v2.1.7
+        uses: actions/cache@v3
         with:
           path: ${{ steps.composer-cache.outputs.dir }}
           key: ${{ matrix.php-versions }}-composer-${{ hashFiles('**/composer.json') }}
@@ -64,7 +64,7 @@ jobs:
         id: composer-cache
         run: echo "::set-output name=dir::$(composer config cache-files-dir)"
       - name: Cache composer dependencies
-        uses: actions/cache@v2.1.7
+        uses: actions/cache@v3
         with:
           path: ${{ steps.composer-cache.outputs.dir }}
           key: 8.0-composer-${{ hashFiles('**/composer.json') }}