fix: add configuration example to validation flow

Signed-off-by: mikeee <[email protected]>

Author: mikeee

.github/workflows/validate-examples.yml

@@ -144,7 +144,7 @@ jobs:
       fail-fast: false
       matrix:
         examples:
-          ["actors", "client", "invoke/grpc", "invoke/grpc-proxying", "pubsub"]
+          ["actors", "client", "configuration", "invoke/grpc", "invoke/grpc-proxying", "pubsub"]
     steps:
       - name: Check out code
         uses: actions/checkout@v4