Updated readme, CT: Mysql:Updated repo key

CT-Build/Debian.yaml

@@ -1731,7 +1731,7 @@ actions:
 - trigger: post-unpack
   action: |-
     #!/bin/bash
-    curl --retry 7 --retry-delay 5 -s http://repo.mysql.com/RPM-GPG-KEY-mysql-2022 | gpg --dearmor > /usr/share/keyrings/mysql-archive-keyring.gpg
+    curl --retry 7 --retry-delay 5 -s http://repo.mysql.com/RPM-GPG-KEY-mysql-2023 | gpg --dearmor > /usr/share/keyrings/mysql-archive-keyring.gpg
     password=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 10 | head -n 1)
     mkdir -p /opt/Setup
     echo $password > /opt/Setup/TempMysqlPasswd