devel/got: update to 0.75

User-visible changes:

• tog: add key to toggle author/committer in log view
• got commit: add -A flag to specify the author of a patch
• tog: alias J and K to > and < keybindings for diff view
• tog: add 'L' key to blame view; opens log view for the annotated line
• reset committer's name+email during rebase and histedit
• tog: uppercase all the key maps which open new views
• got patch: add -c flag to apply at a specified commit
• tog: add n{G,g} key map to jump to line n like less(1)
• tog: add keymaps to jump to next/prev file/hunk in the diff view