fix: test

Signed-off-by: dhmlau <dhmlau@ca.ibm.com>

Author: dhmlau

.github/workflows/continuous-integration.yml

@@ -32,7 +32,7 @@ jobs:
         run: |
           echo "Waiting for DB2 to start..."
           for i in {1..200}; do
-            if docker exec db2 su - db2inst1 -c 'db2 connect to sample' > /dev/null 2>&1; then
+            if docker exec db2 su - db2inst1 -c 'db2 get instance' > /dev/null 2>&1; then
               echo "DB2 is ready!"
               break
             fi