Add step to apply CRDs in cel-tests CI job

Author: shaun-nx

.github/workflows/ci.yml

@@ -327,12 +327,16 @@ jobs:
           cache-dependency-path: |
             go.sum
             .github/.cache/buster-for-unit-tests
-      
+
       - name: Deploy Kubernetes
         id: k8s
         run: |
           kind create cluster --name ${{ github.run_id }} --image=kindest/node:${{ needs.vars.outputs.k8s_latest }}
 
+      - name: Apply CustomResourceDefinition
+        run: |
+          kubectl kustomize config/crd | kubectl apply -f -
+
       - name: Run Tests
         run: make -C tests test-cel-validation