Release 15.4.18

[fheinecke]

• Fixed an issue that could result in duplicate session recordings being created. #46264
• Added API resources for auto update (config and version). #46257
• Added support for the teleport_installer resource to the Teleport Terraform provider. #46202
• Fixed an issue that would cause reissue of certificates to fail in some scenarios where a local auth service was present. #46183
• Updated OpenSSL to 3.0.15. #46181
• Extended Teleport ability to use non-default cluster domains in Kubernetes, avoiding the assumption of cluster.local. #46151
• Fixed retention period handling in the CockroachDB audit log storage backend. #46148
• Prevented Teleport Kubernetes access from resending resize events to the party that triggered the terminal resize, avoiding potential resize loops. #46067
• Fixed an issue where attempts to play/export certain session recordings would fail with gzip: invalid header. #46034
• Fixed a bug where Teleport services could not join the cluster using IAM, Azure, or TPM methods when the proxy service certificate did not contain IP SANs. #46009
• Updated the icons for server, application, and desktop resources. #45991
• Failure to share a local directory in a Windows desktop session is no longer considered a fatal error. #45853
• Fixed Okta role formatting in tsh login output. #45582

[rosstimothy]

Can we hold this until #46292 lands?