security/teleport: update to 4.2.11

From ChangeLog: https://github.com/gravitational/teleport/releases/tag/v4.2.11

• Fixed an issue that prevented upload of session archives to NFS volumes.
• Fixed an issue with port forwarding that prevented TCP connections from being closed correctly.
• Fixed an issue in tsh that would cause connections to the Auth Server to fail on large clusters. #3872
• Fixed an issue that prevented the use of Write-Only roles with S3 and GCS.

While here:

• Reorder some variables
• Remove GH_TAG_COMMIT

Reported by: portscout