How to check kubeconfig certificate expiration date in RHOCP

Issue

• Need to verify the expiration date of a client certificate in a kubeconfig file.
• Uncertainty about the expiration status of a client certificate in the kubeconfig file.
• Users may experience access issues or concerns regarding the security of their OCP cluster due to expired client certificates.
• Users looking to proactively manage OCP client certificates.
• Users seek information on best practices for certificate management and automation.