BAU - Remove ginkgo CLI

Description:
- Removes the unused ginkgo CLI step in GitHub actions
- Bumps the GitHub action to use 1.20

.github/workflows/ci.yml

@@ -12,10 +12,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@93397bea11091df50f3d7e59dc26a7711a8bcfbe
         with:
-          go-version: 1.18
-
-      - name: Install ginkgo
-        run: go install github.com/onsi/ginkgo/v2/ginkgo@latest
+          go-version: 1.20
 
       - name: Test
         run: |