Update deprecated ::set-output in @actions/cache

Author: GromNaN

.github/workflows/build-ci.yml

@@ -62,7 +62,7 @@ jobs:
                     DEBUG: ${{secrets.DEBUG}}
             -   name: Download Composer cache dependencies from cache
                 id: composer-cache
-                run: echo "::set-output name=dir::$(composer config cache-files-dir)"
+                run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
             -   name: Cache Composer dependencies
                 uses: actions/cache@v3
                 with: