devel/got: update to 0.62

User-visible changes:

• ignore unversioned files while aborting rebase, histedit, merge or operations
• let 'got fetch' send all references to the server to avoid redundant downloads
• add support for multiple path arguments to 'got diff'
• fix merging of lines inserted at the top of a file
• implement 'got diff -c' for diffing commits with optional filtering by path
• fix merging of files which contain a dot on a line by itself
• sort and de-duplicate work tree path command line arguments
• do not skip ignored directories in 'got status' if they contain tracked files