replaced constructor with requiredArgsConstructor annotation

backend/src/main/java/com/vaessl/app/connection/ConnectionController.java

@@ -9,16 +9,14 @@ import com.vaessl.app.dto.ConnectionRequest;
 import com.vaessl.app.dto.ConnectionResponse;
 
 import jakarta.validation.Valid;
+import lombok.RequiredArgsConstructor;
 
 @RestController
+@RequiredArgsConstructor
 public class ConnectionController {
 
     private final ConnectionService connectionService;
 
-    public ConnectionController(ConnectionService connectionService) {
-        this.connectionService = connectionService;
-    }
-
     @PostMapping("/login")
     public ResponseEntity<ConnectionResponse> loginResponse(@Valid @RequestBody ConnectionRequest request) {
         return ResponseEntity.ok(connectionService.login(request));