chore(version): Bump version 2.6.0 #2338

Job	Run time
test / test-dart-vm (3.3.0)	4m 34s
test / test-dart-vm (stable)	4m 27s
dart2js_test / test-dart-2js (3.3.0, chrome)	2m 50s
ddc_test / test-dart-ddc (3.3.0, chrome)	2m 45s
native_test / test-dart-native (macos-14)	1m 51s
ddc_test / test-dart-ddc (3.3.0, firefox)	3m 19s
dart2js_test / test-dart-2js (3.3.0, firefox)	3m 20s
native_test / test-dart-native (windows-latest)	4m 47s
ddc_test / test-dart-ddc (stable, chrome)	3m 15s
ddc_test / test-dart-ddc (stable, firefox)	3m 10s
dart2js_test / test-dart-2js (stable, chrome)	2m 42s
dart2js_test / test-dart-2js (stable, firefox)	3m 23s
	40m 23s

Provide feedback