fix: read only system variables for properties

src/main/java/com/crowdin/cli/properties/PropertiesBuilder.java

@@ -236,7 +236,7 @@ static void setEnvOrPropertyIfExists(Consumer<String> setter, Map<String, Object
     }
 
     static void setEnvIfExists(Consumer<String> setter, String envKey) {
-        String param = getDotenv().get(envKey);
+        String param = System.getenv(envKey);
         if (param != null) {
             setter.accept(param);
         }