app-text/calibre: Revbump post dep changes

Signed-off-by: Michał Górny <mgorny@gentoo.org>

diff --git a/app-text/calibre/calibre-3.26.1.ebuild b/app-text/calibre/calibre-3.26.1-r1.ebuild
similarity index 100%
rename from app-text/calibre/calibre-3.26.1.ebuild
rename to app-text/calibre/calibre-3.26.1-r1.ebuild

diff --git a/app-text/calibre/calibre-3.46.0.ebuild b/app-text/calibre/calibre-3.46.0-r1.ebuild
similarity index 100%
rename from app-text/calibre/calibre-3.46.0.ebuild
rename to app-text/calibre/calibre-3.46.0-r1.ebuild