fix: increases reserved planning time to account for forum
Description
The previous time reserved for meetings was used for forum discussions once opencraft switched to the asynchronous sprint planning process.
The updated time only account for the async sprint planning process and the time needed for that process.
This change accounts for the time needed to go over some forum discussions as well.
Supporting information
- Jira Tickets: SE-4839
- Pull Request: https://gitlab.com/opencraft/dev/sprints/-/merge_requests/8#note_693447089
Deadline
This change needs to be merged on Monday October 4.