Build(deps): bump actions/cache from 3 to 4

Bumps [actions/cache](https://github.com/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
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/build.yml

@@ -90,15 +90,15 @@ jobs:
 
       - name: Cache extensions 5.3 - 5.6
         if: matrix.php < '7.0'
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ${{ steps.cache-env-php5.outputs.dir }}
           key: ${{ steps.cache-env-php5.outputs.key }}
           restore-keys: ${{ steps.cache-env-php5.outputs.key }}
 
       - name: Cache extensions 7.0 - 8.0
         if: matrix.php >= '7.0'
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ${{ steps.cache-env-php7.outputs.dir }}
           key: ${{ steps.cache-env-php7.outputs.key }}
@@ -121,7 +121,7 @@ jobs:
         run: echo "COMPOSER_CACHE_DIR=~\AppData\Local\Composer" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
 
       - name: Cache dependencies installed with composer
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ${{ env.COMPOSER_CACHE_DIR }}
           key: php${{ matrix.php }}-composer-${{ hashFiles('**/composer.json') }}