fix kotlin tests

Author: everly-gif

templates/kotlin/src/main/kotlin/io/appwrite/Client.kt.twig

@@ -62,7 +62,7 @@ class Client @JvmOverloads constructor(
     init {
         headers = mutableMapOf(
             "content-type" to "application/json",
-            "user-agent" to "{{spec.title | caseUcfirst}}Kotlin/{{ sdk.version }} (${os.type()} ${os.version()}; ${os.arch()})",
+            "User-Agent" to "{{spec.title | caseUcfirst}}Kotlin/{{ sdk.version }} ",
             "x-sdk-version" to "{{spec.title | caseDash}}:{{ language.name | caseLower }}:${BuildConfig.SDK_VERSION}"{% if spec.global.defaultHeaders | length > 0 %},{% endif %}