Release 2025 task list

[mchamberland]

This issue is used to track progress towards a 2025 release of egs_brachy.

• [ ] #69
• [ ] #70
• [ ] #71
• [ ] #72
• [ ] #73
• [ ] #74
• [ ] #75
• [ ] #76
• [ ] #77
• [ ] #78
• [ ] #79
• [ ] #80
• [ ] #81
• [ ] #82