Bump the release date

Co-authored-by: Xylar Asay-Davis <xylarstorm@gmail.com>

Author: xylar

CITATION.cff

@@ -80,4 +80,4 @@ authors:
 repository-code: 'https://github.com/MPAS-Dev/MPAS-Tools'
 url: 'https://mpas-dev.github.io/MPAS-Tools/master/'
 version: 2.0.0
-date-released: '2026-06-26'
+date-released: '2026-07-01'