devel/goffice: update to 0.10.61

Update to 0.10.61

goffice 0.10.61:

Morten:

• Up gtk+ requirement to 3.20. Still ancient.
• Fix regression error reporting problems.
• Introspection fixes.
• Import go_reduce_pi from Gnumeric.
• Test improvements.
• Plug leaks.
• Fix problems with go_string_new_len.
• Fix problem with arc canvas item.
• Fix various issued with text canvas item.

PR: 294908