Fix GitHub.commented_in_range

[Felixoid]

Unfortunately, the current code doesn't cover many edge cases for large/old PRs and issues. Here are the cases that I address in the PR:

• The page size in GitHub is 30, so only 30 comments are fetched
• Pagination is not used at all
• If a PR/issue was updated after until, it will be filtered out by the first search query
• The since parameter isn't used. For huge issues/PRs, it helps to reduce the number of requests significantly

> gh api 'repos/ClickHouse/ClickHouse/issues/90542/comments?per_page=100&since=2025-11-20T00:00:00' | jq '.[] | .created_at'
"2025-11-20T23:55:00Z"
"2025-11-21T00:12:32Z"
"2025-11-21T09:56:12Z"
> gh api 'repos/ClickHouse/ClickHouse/issues/90542/comments?per_page=100&since=2025-11-21T00:00:00' | jq '.[] | .created_at'
"2025-11-21T00:12:32Z"
"2025-11-21T09:56:12Z"