chore(deps): update rust crate eframe to 0.26

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
eframe (source)	dev-dependencies	minor	0.25 -> 0.26

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Release Notes

emilk/egui (eframe)

v0.26.0

Compare Source

• Update wgpu to 0.19 #​3824
• Disable the default features of wgpu #​3875
• Much more accurate cpu_usage timing #​3913
• Update to puffin 0.19 #​3940

Desktop/Native:

• Keep ViewportInfo::maximized and minimized up-to-date on Windows #​3831 (thanks @​rustbasic!)
• Handle IconData::default() without crashing #​3842
• Fix Android crash on resume #​3847 #​3867 (thanks @​Garoven!)
• Add WgpuConfiguration::desired_maximum_frame_latency #​3874
• Don't call App::update on minimized windows #​3877 (thanks @​rustbasic!)

Web:

• When using wgpu on web, eframe will try to use WebGPU if available, then fall back to WebGL #​3824 #​3895 (thanks @​Wumpf!)

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