chore: added api version to ci for cte

Author: jhefferman-sfdc

.github/workflows/karma.yml

@@ -102,6 +102,8 @@ jobs:
             - run: API_VERSION=59 DISABLE_SYNTHETIC=1 yarn sauce:ci
             - run: API_VERSION=60 yarn sauce:ci
             - run: API_VERSION=60 DISABLE_SYNTHETIC=1 yarn sauce:ci
+            - run: API_VERSION=68 yarn sauce:ci
+            - run: API_VERSION=68 DISABLE_SYNTHETIC=1 yarn sauce:ci
 
             - name: Upload coverage results
               uses: actions/upload-artifact@v4