add CI path filter for kotlin-oneOf-anyOf-kotlinx-serialization sample

Author: naokiwakata

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

@@ -6,11 +6,13 @@ on:
       - 'samples/client/petstore/kotlin*/**'
       - 'samples/client/others/kotlin-jvm-okhttp-parameter-tests/**'
       - samples/client/others/kotlin-integer-enum/**
+      - samples/client/others/kotlin-oneOf-anyOf-kotlinx-serialization/**
   pull_request:
     paths:
       - 'samples/client/petstore/kotlin*/**'
       - 'samples/client/others/kotlin-jvm-okhttp-parameter-tests/**'
       - samples/client/others/kotlin-integer-enum/**
+      - samples/client/others/kotlin-oneOf-anyOf-kotlinx-serialization/**
 
 jobs:
   build: