Use constructor injection and MockitoBean

Replace field injection and the deprecated MockBean and SpyBean

src/main/java/de/ozgcloud/eingang/formsolutions/FormSolutionsRequestMapper.java

@@ -31,7 +31,7 @@ import java.util.HashMap;
 import java.util.Map;
 import java.util.Objects;
 
-import org.springframework.beans.factory.annotation.Autowired;
+import lombok.RequiredArgsConstructor;
 import org.springframework.http.MediaType;
 import org.springframework.stereotype.Component;
 
@@ -43,6 +43,7 @@ import de.ozgcloud.eingang.common.formdata.FormData;
 import de.ozgcloud.eingang.common.formdata.IncomingFile;
 
 @Component
+@RequiredArgsConstructor
 class FormSolutionsRequestMapper {
 	static final TypeReference<Map<String, Object>> VALUE_TYPE_REF = new TypeReference<Map<String, Object>>() {
 	};
@@ -55,10 +56,8 @@ class FormSolutionsRequestMapper {
 	public static final String FORMDATA_FIELD_POSTKORBHANDLE = "postkorbhandle";
 	static final String FORMDATA_FIELD_TRANSACTION_ID = "transactionId";
 
-	@Autowired
-	private FormSolutionsAttachmentsMapper attachmentMapper;
-	@Autowired
-	private ObjectMapper objectMapper;
+	private final FormSolutionsAttachmentsMapper attachmentMapper;
+	private final ObjectMapper objectMapper;
 
 	public FormData map(File jsonFile) {
 		var eingang = mapEingang(jsonFile);