Bump actions/cache from 1 to 3

Bumps [actions/cache](https://github.com/actions/cache) from 1 to 3.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v1...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>

.github/workflows/ci.yml

@@ -56,7 +56,7 @@ jobs:
       run: echo "::set-output name=date::$(date +'%Y-%m')"
 
     - name: Cache composer dependencies
-      uses: actions/cache@v1
+      uses: actions/cache@v3
       with:
         path: ${{ steps.composer-cache.outputs.dir }}
         key: ${{ runner.os }}-composer-${{ steps.key-date.outputs.date }}-${{ hashFiles('composer.json') }}-${{ matrix.prefer-lowest }}
@@ -111,7 +111,7 @@ jobs:
         key: ${{ steps.key-date.outputs.date }}
 
     - name: Cache PHP extensions
-      uses: actions/cache@v1
+      uses: actions/cache@v3
       with:
         path: ${{ steps.php-ext-cache.outputs.dir }}
         key: ${{ runner.os }}-php-ext-${{ steps.php-ext-cache.outputs.key }}
@@ -135,7 +135,7 @@ jobs:
       run: echo "::set-output name=dir::$(composer config cache-files-dir)"
 
     - name: Cache composer dependencies
-      uses: actions/cache@v1
+      uses: actions/cache@v3
       with:
         path: ${{ steps.composer-cache.outputs.dir }}
         key: ${{ runner.os }}-composer-${{ steps.key-date.outputs.date }}-${{ hashFiles('composer.json') }}