Remove MySQL root password to match test configuration

Co-authored-by: nomeguy <85475922+nomeguy@users.noreply.github.com>
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 012f843..119f2e6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -34,7 +34,6 @@
         uses: mirromutth/mysql-action@v1.1
         with:
           mysql database: casbin
-          mysql root password: password
 
       - name: Set up Node.js
         uses: actions/setup-node@v2.1.5
@@ -65,7 +64,6 @@
         uses: mirromutth/mysql-action@v1.1
         with:
           mysql database: casbin
-          mysql root password: password
 
       - name: Set up Node.js
         uses: actions/setup-node@v3