Set release date for 2.26.0 as April 3, 2023

Author: turnstep

check_postgres.pl

@@ -11364,7 +11364,7 @@ =head1 HISTORY
 
 =over 4
 
-=item B<Version 2.26.0> Not yet released
+=item B<Version 2.26.0> Released April 3, 2023
 
   Add new action "pgbouncer_maxwait" (Ruslan Kabalin) [Github pull #59]
 
@@ -11395,6 +11395,7 @@ =head1 HISTORY
 
   Various improvements to the tests (Christoph Berg, Emre Hasegeli)
 
+
 =item B<Version 2.25.0> Released February 3, 2020
 
   Allow same_schema objects to be included or excluded with --object and --skipobject