LCORE-1426: remove @flaky tags from inline RAG e2e tests

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: are-ces

tests/e2e/features/inline_rag.feature

@@ -22,7 +22,6 @@ Feature: Inline RAG (BYOK) support tests
     }
     """
 
-  @flaky
   Scenario: Query with inline RAG returns relevant content
     When I use "query" to ask question with authorization header
     """
@@ -34,7 +33,6 @@ Feature: Inline RAG (BYOK) support tests
          | great work                |
      And The response contains non-empty rag_chunks
 
-  @flaky
   Scenario: Inline RAG query includes referenced documents
     When I use "query" to ask question with authorization header
     """
@@ -43,7 +41,6 @@ Feature: Inline RAG (BYOK) support tests
     Then The status code of the response is 200
      And The response contains non-empty referenced_documents
 
-  @flaky
   Scenario: Streaming query with inline RAG returns relevant content
     When I use "streaming_query" to ask question with authorization header
     """
@@ -55,7 +52,6 @@ Feature: Inline RAG (BYOK) support tests
          | Fragments in LLM response |
          | great work                |
 
-  @flaky
   Scenario: Responses API with inline RAG returns relevant content
     When I use "responses" to ask question with authorization header
     """
@@ -66,7 +62,6 @@ Feature: Inline RAG (BYOK) support tests
          | Fragments in LLM response |
          | great work                |
 
-  @flaky
   Scenario: Streaming Responses API with inline RAG returns relevant content
     When I use "responses" to ask question with authorization header
     """