feat: declare default User-Agent header value via config

config/packages/framework.yaml

@@ -23,6 +23,11 @@ framework:
 
     default_locale: '%env(APP_LOCALE)%'
 
+    http_client:
+        default_options:
+            headers:
+                'User-Agent': 'Platoniq Goteo-v4-API'
+
 when@test:
     framework:
         test: true

src/Service/Nominatim/NominatimService.php

@@ -24,7 +24,6 @@ class NominatimService
     ) {
         $this->httpClient = $httpClient->withOptions([
             'base_uri' => self::NOMINATIM_BASE_URI,
-            'headers' => ['User-Agent' => 'goteo/v4'],
         ]);
     }