⬆️ Upgrade to alpine 3.20

[zigarn]

No description provided.

[andreyfel]

@jlandure could you please take a look?

[mihkeleidast]

Note that updating to latest chrome will also:

• make the new headless mode default (so we'd need to use --headless=old to keep same behavior)
• remove support for --remote-debugging-address flag (even for --headless=old), for which there is no good replacement.

I forked the repo and hoped I could simply run the update as it was done here, but no such luck :)

Edit: implementing the socat workaround as suggested in #225 (comment) worked with the new headless mode, so probably needs to be implemented on the base container: mihkeleidast@e1ec346