mysql 8.0がインストールされているamazon Linux2 で yum update したら以下のエラーが発生！！
Downloading packages:
警告: /var/cache/yum/x86_64/2/mysql80-community/packages/mysql-community-server-8.0.28-1.el7.x86_64.rpm: ヘッダー V4 RSA/SHA256 Signature、鍵 ID XXXXXXXX: NOKEY
file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql から鍵を取得中です。
The GPG keys listed for the "MySQL 8.0 Community Server" repository are already installed but they are not correct for this package.
Check that the correct key URLs are configured for this repository.
Failing package is: mysql-community-server-8.0.28-1.el7.x86_64
GPG Keys are configured as: file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
■対応方法
以下を実行後、yum update すると問題なく進む。
rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022