Update 1.25 release schedule (#1940)
Update 1.25 release schedule (#1940)

* update 1.25 release schedule

* remove extra line

* add 1.25.0-rc.1 date

* Update releases/release-1.25/README.md

Co-authored-by: Sascha Grunert <70ab469ddb2ac3e35f32ed7c2fd1cca514b2e879@redhat.com>

Co-authored-by: Sascha Grunert <70ab469ddb2ac3e35f32ed7c2fd1cca514b2e879@redhat.com>
kubernetes/sig-release