Revert "Remove dashes from step ids"

This reverts commit 4d5f03db8a.

examples/symfony-postgres.yml

@@ -29,12 +29,12 @@ jobs:
           extensions: mbstring, xml, ctype, iconv, intl, pdo_sqlite, pgsql
           coverage: xdebug #optional
       - name: Get composer cache directory
-        id: composercache
+        id: composer-cache
         run: echo "::set-output name=dir::$(composer config cache-files-dir)"
       - name: Cache composer dependencies
         uses: actions/cache@v2
         with:
-          path: ${{ steps.composercache.outputs.dir }}
+          path: ${{ steps.composer-cache.outputs.dir }}
           # Use composer.json for key, if composer.lock is not committed.
           # key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}
           key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}