Update libplacebo and drop old Gamescope workaround

app/deploy/linux/appimage/0001-Vulkan-Don-t-try-to-reuse-old-swapchain.patch

@@ -1,40 +0,0 @@
-From 78261eb6e2fe728fa5d3843b5b8962b1ca559b7e Mon Sep 17 00:00:00 2001
-From: David Rosca <nowrep@gmail.com>
-Date: Sat, 16 Dec 2023 14:52:01 +0100
-Subject: [PATCH] Vulkan: Don't try to reuse old swapchain
-
----
- src/vulkan/swapchain.c | 12 ++++++++++--
- 1 file changed, 10 insertions(+), 2 deletions(-)
-
-diff --git a/src/vulkan/swapchain.c b/src/vulkan/swapchain.c
-index 0646e57c..c0b07ce4 100644
---- a/src/vulkan/swapchain.c
-+++ b/src/vulkan/swapchain.c
-@@ -612,13 +612,21 @@ static bool vk_sw_recreate(pl_swapchain sw, int w, int h)
-     }
- #endif
- 
-+    {
-+        pl_gpu_flush(gpu);
-+        vk_wait_idle(vk);
-+        for (int i = 0; i < vk->pool_graphics->num_queues; i++)
-+            vk->QueueWaitIdle(vk->pool_graphics->queues[i]);
-+        vk->DestroySwapchainKHR(vk->dev, p->swapchain, PL_VK_ALLOC);
-+    }
-+
-     // Calling `vkCreateSwapchainKHR` puts sinfo.oldSwapchain into a retired
-     // state whether the call succeeds or not, so we always need to garbage
-     // collect it afterwards - asynchronously as it may still be in use
--    sinfo.oldSwapchain = p->swapchain;
-+    /* sinfo.oldSwapchain = p->swapchain; */
-     p->swapchain = VK_NULL_HANDLE;
-     VkResult res = vk->CreateSwapchainKHR(vk->dev, &sinfo, PL_VK_ALLOC, &p->swapchain);
--    vk_dev_callback(vk, VK_CB_FUNC(destroy_swapchain), vk, vk_wrap_handle(sinfo.oldSwapchain));
-+    /* vk_dev_callback(vk, VK_CB_FUNC(destroy_swapchain), vk, vk_wrap_handle(sinfo.oldSwapchain)); */
-     PL_VK_ASSERT(res, "vk->CreateSwapchainKHR(...)");
- 
-     // Get the new swapchain images
--- 
-2.43.0
-