PB-37351: Use bundler-cache

Author: Tecnobutrul

.github/workflows/push_pr_main.yaml

@@ -22,12 +22,12 @@ jobs:
       - name: Set up Ruby ${{ matrix.ruby-version }}
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "3.4.1"
+          ruby-version: "3.3.5"
+          bundler-cache: true
       - env:
           PASSBOLT_COMPONENT: "stable"
           PASSBOLT_FLAVOUR: "ce"
           ROOTLESS: ${{ matrix.rootless }}
           TEST_NAME: ${{ matrix.test_name }}
         run: |
-          bundle install
           bundle exec rake spec:$TEST_NAME