Reference to ETSI EN 319 403

[srdavidson]

The references refer to ETSI EN 319 403. This was superseded by ETSI EN 319 403-1 in April 2021 and should not appear in any current audits.

[github-actions]

This issue was created based on:

• TLS BR Version 2.2.2
• EVG Version 2.0.1