"Emitting Safer Rust" blog has the wrong date

[dtolnay]

https://immunant.com/blog/2022/06/back/

The post was published on March 13, 2023, in fdcc7d7. And this is reflected in the URL which starts with /blog/2023/03.

But the date in the post's metadata is June 13, 2022, which is the date of a different post from last year.

@thedataking