Update date of article

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

Author: alexellis

…ts/2024-05-16-function-authentication.md …5-17-built-in-function-authentication.md_posts/2024-05-16-function-authentication.md renamed to _posts/2024-05-17-built-in-function-authentication.md _posts/2024-05-16-function-authentication.md renamed to _posts/2024-05-17-built-in-function-authentication.md

@@ -1,7 +1,7 @@
 ---
 title: Introducing built-in authentication for OpenFaaS Functions
 description: 
-date: 2024-05-16
+date: 2024-05-17
 categories:
 - kubernetes
 - faas