hacks for running (and screenshotting) the examples in CI on a github…

… runner (bevyengine#9220)

# Objective

- Enable capturing screenshots of all examples in CI on a GitHub runner

## Solution

- Shorten duration of a run
- Disable `desktop_app` mode - as there isn't any input in CI, examples
using this take way too long to run
- Change the default `ClusterConfig` - the runner are not able to do all
the clusters with the default settings
- Send extra `WindowResized` events - this is needed only for the
`split_screen` example, because CI doesn't trigger that event unlike all
the other platforms

---------

Co-authored-by: Rob Parrett <[email protected]>

tools/example-showcase/extra-window-resized-events.patch

@@ -0,0 +1,16 @@
+diff --git a/crates/bevy_winit/src/lib.rs b/crates/bevy_winit/src/lib.rs
+index 46b3e3e19..81ffad2b5 100644
+--- a/crates/bevy_winit/src/lib.rs
++++ b/crates/bevy_winit/src/lib.rs
+@@ -432,6 +432,11 @@ pub fn winit_runner(mut app: App) {
+                     };
+
+                 runner_state.window_event_received = true;
++                event_writers.window_resized.send(WindowResized {
++                    window: window_entity,
++                    width: window.width(),
++                    height: window.height(),
++                });
+
+                 match event {
+                     WindowEvent::Resized(size) => {

tools/example-showcase/fixed-window-position.patch

@@ -0,0 +1,13 @@
+diff --git a/crates/bevy_window/src/window.rs b/crates/bevy_window/src/window.rs
+index 10bdd8fe8..dda272569 100644
+--- a/crates/bevy_window/src/window.rs
++++ b/crates/bevy_window/src/window.rs
+@@ -232,7 +232,7 @@ impl Default for Window {
+             cursor: Default::default(),
+             present_mode: Default::default(),
+             mode: Default::default(),
+-            position: Default::default(),
++            position: WindowPosition::Centered(MonitorSelection::Primary),
+             resolution: Default::default(),
+             internal: Default::default(),
+             composite_alpha_mode: Default::default(),

tools/example-showcase/reduce-light-cluster-config.patch

@@ -0,0 +1,15 @@
+diff --git a/crates/bevy_pbr/src/light.rs b/crates/bevy_pbr/src/light.rs
+index 3e8c0d451..07aa7d586 100644
+--- a/crates/bevy_pbr/src/light.rs
++++ b/crates/bevy_pbr/src/light.rs
+@@ -694,8 +694,8 @@ impl Default for ClusterConfig {
+         // 24 depth slices, square clusters with at most 4096 total clusters
+         // use max light distance as clusters max `Z`-depth, first slice extends to 5.0
+         Self::FixedZ {
+-            total: 4096,
+-            z_slices: 24,
++            total: 128,
++            z_slices: 4,
+             z_config: ClusterZConfig::default(),
+             dynamic_resizing: true,
+         }

tools/example-showcase/remove-desktop-app-mode.patch

@@ -0,0 +1,21 @@
+diff --git a/crates/bevy_winit/src/winit_config.rs b/crates/bevy_winit/src/winit_config.rs
+index c71a92814..b138d07a0 100644
+--- a/crates/bevy_winit/src/winit_config.rs
++++ b/crates/bevy_winit/src/winit_config.rs
+@@ -47,15 +47,7 @@ impl WinitSettings {
+     /// [`Reactive`](UpdateMode::Reactive) if windows have focus,
+     /// [`ReactiveLowPower`](UpdateMode::ReactiveLowPower) otherwise.
+     pub fn desktop_app() -> Self {
+-        WinitSettings {
+-            focused_mode: UpdateMode::Reactive {
+-                wait: Duration::from_secs(5),
+-            },
+-            unfocused_mode: UpdateMode::ReactiveLowPower {
+-                wait: Duration::from_secs(60),
+-            },
+-            ..Default::default()
+-        }
++        Self::game()
+     }
+
+     /// Returns the current [`UpdateMode`].