[CI] add job for running GL simulation

.github/workflows/caravel_example_ci.yml

diff --git a/.github/workflows/caravel_example_ci.yml b/.github/workflows/caravel_example_ci.yml
index e833d29..8e72fb9 100644
--- a/.github/workflows/caravel_example_ci.yml
+++ b/.github/workflows/caravel_example_ci.yml
@@ -72,4 +72,28 @@
        - name: Run DV tests
          # Run test number 0,1,2,3 in one job                               <test-ids>   <sim-mode>
          run: bash ${GITHUB_WORKSPACE}/.github/scripts/dv/run-dv-wrapper.sh 0,1,2,3      RTL
-  
\ No newline at end of file
+
+  dv_gl:
+    runs-on: ubuntu-latest
+    steps:
+       - uses: actions/checkout@v2
+         with:
+          submodules: 'true'
+      
+       - name: Set up QEMU
+         uses: docker/setup-qemu-action@v1
+
+       - name: Set up Docker Buildx
+         uses: docker/setup-buildx-action@v1
+        
+       - name: Install The PDK
+         run:  bash ${GITHUB_WORKSPACE}/.github/scripts/dv/pdkBuild.sh
+         env: 
+          OPENLANE_TAG: v0.12
+          
+       - name: Install The Dockerized DV Setup
+         run:  docker pull efabless/dv_setup:latest
+       
+       - name: Run DV tests
+         # Run test number 0,1,2,3 in one job                               <test-ids>   <sim-mode>
+         run: bash ${GITHUB_WORKSPACE}/.github/scripts/dv/run-dv-wrapper.sh 0,1,2,3      GL