new mastodon avatar for v24.06

v24.06 is out!

https://postmarketos.org/blog/2024/06/16/v24.06-release/

With the previous releases, we have updated the mastodon and lemmy avatars with each of these. The current one is https://gitlab.com/postmarketOS/artwork/-/blob/master/avatar/2023-12.png and can be seen here:

• https://fosstodon.org/@postmarketOS
• https://lemmy.ml/c/postmarketos

@dikasetyaprayogi: would you like to make a new one, based on the Meadow wallpaper?