ci: manually update puzzle id after changing a comment

The comment has been modified in 947f7b2 commit

The error was:
ERROR: 684-0b0d5497 => #748: issue looks identical but its body doesn't contain the puzzle id (684-0b0d5497)!
ERROR: Perhaps, the puzzle id got changed after issue creation
ERROR: Body: The puzzle 684-b075a77e (from #684) in [src/main/java/ru/mystamps/web/service/SeriesImportServiceImpl.java](https://github.com/php-coder/mystamps/blob/6091f30a29dc445f8f544cc05e359df910c67eb5/src/main/java/ru/mystamps/web/service/SeriesImportServiceImpl.java#L182-L183) has to be resolved: "Series import: add integration test for the case when parsed value don't match database"  https://github.com/php-coder/mystamps/blob/6091f30a29dc445f8f544cc05e359df910c67eb5/src/main/java/ru/mystamps/web/service/SeriesImportServiceImpl.java#L182-L183  The puzzle was created by Slava Semushin on 04-Dec-17
ERROR: Ways to resolve:
ERROR:     1) edit #748 and modify its body to contain 684-0b0d5497
ERROR:     2) manually create a mapping between this puzzle and the issue:
ERROR:        echo '684-0b0d5497\t748\topen\tmanually' >>generated-todos/todos-on-github.tsv

Part of #1610

Author: php-coder

todos-on-github.tsv

@@ -202,4 +202,4 @@ Id	Issue	State	Created
 1489-42680117	1500	open	automatically
 1505-6101f84e	1545	open	automatically
 1513-5b274200	1546	open	automatically
-684-b075a77e	748	open	manually
+684-0b0d5497	748	open	manually