Update deploy.yml

Author: maryamhashemi

.github/workflows/deploy.yml

@@ -27,10 +27,10 @@ jobs:
         key: ${{ runner.os }}-gems-${{ hashFiles('**/Gemfile.lock') }}
         restore-keys: |
           ${{ runner.os }}-gems-
-    - name: Install deps
+    - name: Install dependencies
       run: |
+        gem update --system
         gem install bundler
-        bundle config path vendor/bundle
         bundle install --jobs 4 --retry 3
         npm install -g mermaid.cli
     - name: Setup deploy options