fix RetrievalMethod StrEnum (#26768)

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: crazywoola <100913391+crazywoola@users.noreply.github.com>

api/tests/unit_tests/core/rag/extractor/firecrawl/test_firecrawl.py

@@ -1,10 +1,12 @@
 import os
 
+from pytest_mock import MockerFixture
+
 from core.rag.extractor.firecrawl.firecrawl_app import FirecrawlApp
 from tests.unit_tests.core.rag.extractor.test_notion_extractor import _mock_response
 
 
-def test_firecrawl_web_extractor_crawl_mode(mocker):
+def test_firecrawl_web_extractor_crawl_mode(mocker: MockerFixture):
     url = "https://firecrawl.dev"
     api_key = os.getenv("FIRECRAWL_API_KEY") or "fc-"
     base_url = "https://api.firecrawl.dev"

api/tests/unit_tests/core/rag/extractor/test_notion_extractor.py

@@ -1,5 +1,7 @@
 from unittest import mock
 
+from pytest_mock import MockerFixture
+
 from core.rag.extractor import notion_extractor
 
 user_id = "user1"
@@ -57,7 +59,7 @@ def _remove_multiple_new_lines(text):
     return text.strip()
 
 
-def test_notion_page(mocker):
+def test_notion_page(mocker: MockerFixture):
     texts = ["Head 1", "1.1", "paragraph 1", "1.1.1"]
     mocked_notion_page = {
         "object": "list",
@@ -77,7 +79,7 @@ def test_notion_page(mocker):
     assert content == "# Head 1\n## 1.1\nparagraph 1\n### 1.1.1"
 
 
-def test_notion_database(mocker):
+def test_notion_database(mocker: MockerFixture):
     page_title_list = ["page1", "page2", "page3"]
     mocked_notion_database = {
         "object": "list",