fix wrong type hint and default value
diff --git a/migration/src/jira_util.py b/migration/src/jira_util.py
index e85522d..83ab00e 100644
--- a/migration/src/jira_util.py
+++ b/migration/src/jira_util.py
@@ -299,7 +299,7 @@
     return text
 
 
-def embed_gh_issue_link(text: str, issue_id_map: dict[str, str], gh_number_self: int = None) -> str:
+def embed_gh_issue_link(text: str, issue_id_map: dict[str, int], gh_number_self: int) -> str:
     """Embed GitHub issue number
     """
     def repl_simple(m: re.Match):
diff --git a/migration/src/remap_cross_issue_links.py b/migration/src/remap_cross_issue_links.py
index fd4e563..18e66ef 100644
--- a/migration/src/remap_cross_issue_links.py
+++ b/migration/src/remap_cross_issue_links.py
@@ -21,7 +21,7 @@
 
 
 @retry_upto(3, 1.0, logger)
-def remap_issue_link_in_issue_body(issue_number: int, issue_id_map: dict[str, str], data_dir: Path, token: str, repo: str):
+def remap_issue_link_in_issue_body(issue_number: int, issue_id_map: dict[str, int], data_dir: Path, token: str, repo: str):
     body = get_issue_body(token, repo, issue_number, logger)
     if body:
         updated_body = embed_gh_issue_link(body, issue_id_map, issue_number)
@@ -36,7 +36,7 @@
 
 
 @retry_upto(3, 1.0, logger)
-def remap_issue_link_in_comments(issue_number: int, issue_id_map: dict[str, str], data_dir: Path, token: str, repo: str):
+def remap_issue_link_in_comments(issue_number: int, issue_id_map: dict[str, int], data_dir: Path, token: str, repo: str):
     comments = get_issue_comments(token, repo, issue_number, logger)
     if not comments:
         return