Update project number in Doxyfile for 24.02

Signed-off-by: Nikhil Raj <nikhil.raj@arm.com>
Change-Id: I33d23163a9e3b204b24e584a19d0e9213d9c4a21
diff --git a/docs/Doxyfile b/docs/Doxyfile
index 6e8b0af..22b2cad 100644
--- a/docs/Doxyfile
+++ b/docs/Doxyfile
@@ -61,7 +61,7 @@
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 23.11
+PROJECT_NUMBER         = 24.02
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a