feat: Add LanceDB support for similar_issue tool and refactor SOC2 compliance feature name

pr_agent/servers/help.py

@@ -95,7 +95,7 @@ The `review` tool can auto-generate two specific types of labels for a PR:
 The `review` tool provides a collection of possible feedbacks about a PR.
 It is recommended to review the [possible options](https://github.com/Codium-ai/pr-agent/blob/main/docs/REVIEW.md#enabledisable-features), and choose the ones relevant for your use case.
 Some of the feature that are disabled by default are quite useful, and should be considered for enabling. For example: 
-`require_score_review`, `require_soc2_review`, `enable_review_labels_effort`, and more.
+`require_score_review`, `require_soc2_ticket`, `enable_review_labels_effort`, and more.
 """
         output += "\n\n</details></td></tr>\n\n"
 

pr_agent/tools/pr_similar_issue.py

@@ -5,7 +5,6 @@ from typing import List
 import openai
 import pandas as pd
 import pinecone
-import lancedb
 from pinecone_datasets import Dataset, DatasetMetadata
 from pydantic import BaseModel, Field
 
@@ -108,6 +107,7 @@ class PRSimilarIssue:
                     get_logger().info('No new issues to update')
         
         elif get_settings().pr_similar_issue.vectordb == "lancedb":
+            import lancedb # import lancedb only if needed
             self.db = lancedb.connect(get_settings().lancedb.uri)
             self.table = None