[TASK] Update copyright year in README.md and INSTALL.md

Update copyright year to 2023

Resolves: #99473
Releases: main, 11.5, 10.4
Signed-off-by: Torben Hansen <derhansen@gmail.com>
Change-Id: I9fc04e75b812622c5aec89138dd7daa8ccfcd90a
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/77270


Tested-by: core-ci <typo3@b13.com>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>

INSTALL.md

@@ -2,7 +2,7 @@ INSTALLING TYPO3
 ================
 
 TYPO3 is an open source PHP based web content management system released
-under the GNU GPL. TYPO3 is copyright © 1999-2022 by Kasper Skaarhoj.
+under the GNU GPL. TYPO3 is copyright © 1999-2023 by Kasper Skaarhoj.
 
 Official Installation and Upgrade Guide
 ---------------------------------------

README.md

@@ -2,7 +2,7 @@ TYPO3 CMS
 =========
 
 TYPO3 is an open source PHP based web content management system released
-under the GNU GPL. TYPO3 is copyright © 1999-2022 by Kasper Skårhøj.
+under the GNU GPL. TYPO3 is copyright © 1999-2023 by Kasper Skårhøj.
 
 This document provides a basic introduction to TYPO3.