schedule: update maintenance-table

Author: fanquake

_includes/posts/maintenance-table.md

@@ -1,6 +1,5 @@
-| 0.19 | 2019-11-24 | 2021-01-15  | 2021-08-01 |
-| 0.20 | 2020-06-03 | 2021-09-13  | 2022-02-01 |
 | 0.21 | 2021-01-15 | 2022-04-25  | 2022-10-01 |
-| 22.0 | 2021-09-13 | after v24.0 | TBA        |
+| 22.0 | 2021-09-13 | 2022-11-24  | 2023-04-01 |
 | 23.0 | 2022-04-25 | after v25.0 | TBA        |
-| 24.0 | TBA*       | TBA         | TBA        |
+| 24.0 | 2022-11-24 | after v26.0 | TBA        |
+| 25.0 | TBA*       | TBA         | TBA        |