Update issue template version to 10.11.5

.github/ISSUE_TEMPLATE/issue report.yml

@@ -87,6 +87,7 @@ body:
       label: Jellyfin Server version
       description: What version of Jellyfin are you using?
       options:
+        - 10.11.5
         - 10.11.4
         - 10.11.3
         - 10.11.2