Bump up shonan optimality threshold param #2484

Job	Run time
Benchmark (sift, door-12, 15, JPG, test_data, olsson-loader, 1296, true)	5m 20s
Benchmark (lightglue, door-12, 15, JPG, test_data, olsson-loader, 1296, true)	6m 26s
Benchmark (sift, skydio-8, 15, jpg, wget, colmap-loader, 760, true)	2m 46s
Benchmark (lightglue, skydio-8, 15, jpg, wget, colmap-loader, 760, true)	3m 7s
Benchmark (sift, skydio-32, 15, jpg, wget, colmap-loader, 760, true)	3m 47s
Benchmark (lightglue, skydio-32, 15, jpg, wget, colmap-loader, 760, true)	5m 22s
Benchmark (sift, palace-fine-arts-281, 15, jpg, wget, olsson-loader, 320, true)	40m 11s
Benchmark (lightglue, notre-dame-20, 15, jpg, wget, colmap-loader, 760, false)	4m 15s
Benchmark (sift, 2011205_rc3, 15, png, wget, astrovision, 1024, true)	11m 52s
Benchmark (lightglue, 2011205_rc3, 15, png, wget, astrovision, 1024, true)	11m 3s
Benchmark (sift, gerrard-hall-100, 15, jpg, wget, colmap-loader, 760, true)	10m 21s
Benchmark (lightglue, gerrard-hall-100, 15, jpg, wget, colmap-loader, 760, true)	19m 18s
Benchmark (sift, south-building-128, 15, jpg, wget, colmap-loader, 760, true)	51m 5s
Benchmark (lightglue, south-building-128, 15, jpg, wget, colmap-loader, 760, true)	20m 20s
	3h 15m 13s

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