[ImgBot] Optimize images

*Total -- 399.93kb -> 354.56kb (11.34%)

/public/partners/prtimes.png -- 15.42kb -> 13.25kb (14.03%)
/public/img/sotechsha/1/image16.png -- 8.48kb -> 7.31kb (13.8%)
/public/img/dojomap_geo.gif -- 313.10kb -> 273.93kb (12.51%)
/public/img/sotechsha2/5/05_cover.png -- 60.66kb -> 57.80kb (4.71%)
/.devcontainer/icon.svg -- 2.27kb -> 2.27kb (0.3%)

Signed-off-by: ImgBotApp <[email protected]>

Author: ImgBotApp