docs: update copyright date to the year 2024

We are already in the third month of 2024 but the copyright notices still refer
to 2023. Update the date to 2024 in documentation and help texts.

Cc: peter.maydell@linaro.org
Cc: qemu-trivial@nongnu.org
Signed-off-by: Ani Sinha <anisinha@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20240311120346.9596-1-anisinha@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

docs/conf.py

@@ -88,7 +88,7 @@
 
 # General information about the project.
 project = u'QEMU'
-copyright = u'2023, The QEMU Project Developers'
+copyright = u'2024, The QEMU Project Developers'
 author = u'The QEMU Project Developers'
 
 # The version info for the project you're documenting, acts as replacement for

include/qemu/help-texts.h

@@ -2,7 +2,7 @@
 #define QEMU_HELP_TEXTS_H
 
 /* Copyright string for -version arguments, About dialogs, etc */
-#define QEMU_COPYRIGHT "Copyright (c) 2003-2023 " \
+#define QEMU_COPYRIGHT "Copyright (c) 2003-2024 " \
     "Fabrice Bellard and the QEMU Project developers"
 
 /* Bug reporting information for --help arguments, About dialogs, etc */