Fix default api version

Co-authored-by: Benjamin Gutmann <[email protected]>

Author: bgutmann

src/Resource/NG/ImportAdapter.php

@@ -40,6 +40,6 @@ public function running(string $channel): bool
 
     private function getApiVersion(): string
     {
-        return (string) $this->config['api_version'] ?? 'v4';
+        return (string) ($this->config['api_version'] ?? 'v4');
     }
 }

src/Resource/NG/SearchAdapter.php

@@ -49,6 +49,6 @@ public function records(string $channel, string $query, array $params = []): arr
 
     private function getApiVersion(): string
     {
-        return (string) $this->config['api_version'] ?? 'v4';
+        return (string) ($this->config['api_version'] ?? 'v4');
     }
 }

src/Resource/NG/TrackingAdapter.php

@@ -33,6 +33,6 @@ public function track(string $channel, string $event, array $eventData = []): ar
 
     private function getApiVersion(): string
     {
-        return (string) $this->config['api_version'] ?? 'v4';
+        return (string) ($this->config['api_version'] ?? 'v4');
     }
 }