RetroArch: bump to version 1.9.13

[kwyxz]

Changes relevant to Haiku port:

• FRAMEDELAY: Add ‘Automatic Frame Delay’ option
• INPUT: Add ‘All users control the menu’ setting – any gamepad can control the menu when this is enabled. Only limitation right now is that only player 1 can toggle the menu, but any set Menu Toggle Controller Combo will work fine for all users, so this should be acceptable for now
• NETPLAY: Other improvements
• NETPLAY: Remove forced disconnection on unknown netplay command – will be backwards compatible with any version that removed this disconnect. instead of disconnecting, we just read the data and ignore, like most network implementations do
• TASKS/CHEEVOS: Replace coroutines with tasks/thread
• TASKS/DATABASE/EXPLORE: Initialise ‘Explore’ menu on a background thread – no more stall when hovering over the Explore tab