add new go sample case in action

Signed-off-by: titaneric <chenyihuang001@gmail.com>

Author: titaneric

.github/workflows/samples-go-client.yaml

@@ -9,6 +9,7 @@ on:
       - samples/client/others/go/allof_multiple_ref_and_discriminator/**
       - samples/client/others/go/oneof-anyof-required/**
       - samples/client/others/go/oneof-discriminator-lookup/**
+      - samples/client/others/go/array-default-value/**
   pull_request:
     paths:
       - 'samples/openapi3/client/petstore/go/go-petstore-aws-signature/**'
@@ -17,6 +18,7 @@ on:
       - samples/client/others/go/allof_multiple_ref_and_discriminator/**
       - samples/client/others/go/oneof-anyof-required/**
       - samples/client/others/go/oneof-discriminator-lookup/**
+      - samples/client/others/go/array-default-value/**
 jobs:
   build:
     name: Build Go
@@ -31,6 +33,7 @@ jobs:
           - samples/client/others/go/allof_multiple_ref_and_discriminator/
           - samples/client/others/go/oneof-anyof-required/
           - samples/client/others/go/oneof-discriminator-lookup/
+          - samples/client/others/go/array-default-value/
     steps:
       - uses: actions/checkout@v5
       - uses: actions/setup-go@v6