feat: using matrix from mysql

.github/workflows/pull_request.yml

@@ -17,6 +17,9 @@ on:
 jobs:
   # This workflow contains a single job called "build"
   build:
+    strategy:
+      matrix:
+        MYSQL_VERSION: [5.7, 8.0]
     # The type of runner that the job will run on
     runs-on: ubuntu-latest
 
@@ -29,7 +32,7 @@ jobs:
         uses: mirromutth/mysql-action@v1.1
         with:
           mysql root password: "root"
-          mysql version: "${{ inputs.MYSQL_VERSION }}"
+          mysql version: "${{ matrix.MYSQL_VERSION }}"
 
       - name: Injecting credentials
         run: |