[ImgBot] Optimize images

[ImgBot] Optimize images

*Total -- 176.23kb -> 157.24kb (10.78%)

/docs/misc/images/24909.png -- 13.45kb -> 11.21kb (16.65%)
/docs/misc/images/24620.png -- 13.80kb -> 11.54kb (16.37%)
/docs/graph/images/bridge3.png -- 20.35kb -> 17.50kb (14%)
/docs/graph/images/bridge2.png -- 26.74kb -> 23.27kb (12.98%)
/docs/graph/flow/images/node2.png -- 31.49kb -> 28.55kb (9.34%)
/docs/ds/images/persistent-seg.png -- 46.51kb -> 42.17kb (9.32%)
/docs/misc/images/24919.png -- 23.90kb -> 23.01kb (3.74%)