Use code blocks instead of suggestion blocks for Bitbucket Server multi-line suggestions to workaround BSERV-4553

Author: MarkRx

pr_agent/git_providers/bitbucket_server_provider.py

@@ -91,6 +91,8 @@ def publish_code_suggestions(self, code_suggestions: list) -> bool:
                 continue
 
             if relevant_lines_end > relevant_lines_start:
+                # Bitbucket does not support multi-line suggestions so use a code block instead - https://jira.atlassian.com/browse/BSERV-4553
+                body = body.replace("```suggestion", "```")
                 post_parameters = {
                     "body": body,
                     "path": relevant_file,