Update version, tag, and date for 0.28.0

Author: msimberg

CMakeLists.txt

@@ -44,10 +44,10 @@ set_property(GLOBAL PROPERTY USE_FOLDERS ON)
 # Build all of pika
 # ##################################################################################################
 set(PIKA_VERSION_MAJOR 0)
-set(PIKA_VERSION_MINOR 27)
+set(PIKA_VERSION_MINOR 28)
 set(PIKA_VERSION_PATCH 0)
-set(PIKA_VERSION_DATE 20240815)
-set(PIKA_VERSION_TAG "-trunk")
+set(PIKA_VERSION_DATE 20240904)
+set(PIKA_VERSION_TAG "")
 
 set(PIKA_VERSION "${PIKA_VERSION_MAJOR}.${PIKA_VERSION_MINOR}.${PIKA_VERSION_PATCH}")
 set(PIKA_LIBRARY_VERSION "${PIKA_VERSION}")