[Dev] [PATCH] Update [libre/nextcloud-client] to v2.6.2

[bill-auger]

denis - i just started toward getting this package out; and i
noticed theova's patch is already applied in abslibre - but it
looks like the packages never got published

id like to suggest that it would be better to avoid publishing
PKGBUILDs for packages that are not actually in the repos - they
are likely to become forgotten otherwise

i always wait until after the package is in the repos for at
least one arch, before pushing changes to abslibre; except in
rare cases when someone else wants to take over mid-way,
wrestling with one of the more pesky packages - in those cases,
i mark the commit with 'WIP' to indicate that it is not a
published package, and may not build